Newton's Law of Motion and It's Application
LAWS OF MOTION (ADDITIONAL)

371718 Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth and another one on the Moon. Which of the following statement are "TRUE"?
I) The horizontal distance travelled by the bullet is greater for the moon.
II) The flight time is less for the bullet on the Earth.
III) The velocities of the bullets at impact are the same.

1 III only
2 I and III only
3 I and II only
4 II and III only
LAWS OF MOTION (ADDITIONAL)

371719 A bullet of mass \(10 \mathrm{~g}\) is horizontally fired with velocity \(300 \mathrm{~m} \mathrm{~s}^{-1}\) from a pistol of mass \(1 \mathrm{~kg}\). What is the recoil velocity of the pistol?

1 \(0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
2 \(3 \mathrm{~m} \mathrm{~s}^{-1}\)
3 \(-3 \mathrm{~m} \mathrm{~s}^{-1}\)
4 \(-0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
LAWS OF MOTION (ADDITIONAL)

371720 Which one of the following statement is INCORRECT?

1 The state of rest or uniform linear motion both imply zero acceleration.
2 A net force is needed to keep a body in uniform motion.
3 Inertia means resistance to change.
4 The rate of change of momentum is proportional to the applied force.
5 Momentum is a vector quantity.
LAWS OF MOTION (ADDITIONAL)

371721 On a conveyor belt moving with a speed \(u\), sand falls at a constant rate \(\left(\frac{d m}{d t}\right)\), where \(m\) is the mass of sand. The extra force required to maintain the speed of the belt is

1 \(\mathrm{m}\left(\frac{\mathrm{du}}{\mathrm{dt}}\right)\)
2 \(\mathrm{mu}\)
3 \(\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right) / \mathrm{u}\)
4 \(u\left(\frac{d m}{d t}\right)\)
5 \(\frac{1}{\mathrm{~m}}\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right)\)
LAWS OF MOTION (ADDITIONAL)

371722 A system as shown in figure is in equilibrium and is at rest. The spring and string are massless, now the string is cut. The acceleration of the masses ' \(2 \mathrm{~m}\) ' and ' \(\mathrm{m}\) ' just after the string is cut, will be

1 \(\frac{g}{2}\) upwards, g downwards
2 g upwards, \(\frac{g}{2}\) downwards
3 \(g\) upwards, \(2 g\) downwards
4 \(2 \mathrm{~g}\) upwards, \(\mathrm{g}\) downwards
LAWS OF MOTION (ADDITIONAL)

371718 Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth and another one on the Moon. Which of the following statement are "TRUE"?
I) The horizontal distance travelled by the bullet is greater for the moon.
II) The flight time is less for the bullet on the Earth.
III) The velocities of the bullets at impact are the same.

1 III only
2 I and III only
3 I and II only
4 II and III only
LAWS OF MOTION (ADDITIONAL)

371719 A bullet of mass \(10 \mathrm{~g}\) is horizontally fired with velocity \(300 \mathrm{~m} \mathrm{~s}^{-1}\) from a pistol of mass \(1 \mathrm{~kg}\). What is the recoil velocity of the pistol?

1 \(0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
2 \(3 \mathrm{~m} \mathrm{~s}^{-1}\)
3 \(-3 \mathrm{~m} \mathrm{~s}^{-1}\)
4 \(-0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
LAWS OF MOTION (ADDITIONAL)

371720 Which one of the following statement is INCORRECT?

1 The state of rest or uniform linear motion both imply zero acceleration.
2 A net force is needed to keep a body in uniform motion.
3 Inertia means resistance to change.
4 The rate of change of momentum is proportional to the applied force.
5 Momentum is a vector quantity.
LAWS OF MOTION (ADDITIONAL)

371721 On a conveyor belt moving with a speed \(u\), sand falls at a constant rate \(\left(\frac{d m}{d t}\right)\), where \(m\) is the mass of sand. The extra force required to maintain the speed of the belt is

1 \(\mathrm{m}\left(\frac{\mathrm{du}}{\mathrm{dt}}\right)\)
2 \(\mathrm{mu}\)
3 \(\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right) / \mathrm{u}\)
4 \(u\left(\frac{d m}{d t}\right)\)
5 \(\frac{1}{\mathrm{~m}}\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right)\)
LAWS OF MOTION (ADDITIONAL)

371722 A system as shown in figure is in equilibrium and is at rest. The spring and string are massless, now the string is cut. The acceleration of the masses ' \(2 \mathrm{~m}\) ' and ' \(\mathrm{m}\) ' just after the string is cut, will be

1 \(\frac{g}{2}\) upwards, g downwards
2 g upwards, \(\frac{g}{2}\) downwards
3 \(g\) upwards, \(2 g\) downwards
4 \(2 \mathrm{~g}\) upwards, \(\mathrm{g}\) downwards
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LAWS OF MOTION (ADDITIONAL)

371718 Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth and another one on the Moon. Which of the following statement are "TRUE"?
I) The horizontal distance travelled by the bullet is greater for the moon.
II) The flight time is less for the bullet on the Earth.
III) The velocities of the bullets at impact are the same.

1 III only
2 I and III only
3 I and II only
4 II and III only
LAWS OF MOTION (ADDITIONAL)

371719 A bullet of mass \(10 \mathrm{~g}\) is horizontally fired with velocity \(300 \mathrm{~m} \mathrm{~s}^{-1}\) from a pistol of mass \(1 \mathrm{~kg}\). What is the recoil velocity of the pistol?

1 \(0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
2 \(3 \mathrm{~m} \mathrm{~s}^{-1}\)
3 \(-3 \mathrm{~m} \mathrm{~s}^{-1}\)
4 \(-0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
LAWS OF MOTION (ADDITIONAL)

371720 Which one of the following statement is INCORRECT?

1 The state of rest or uniform linear motion both imply zero acceleration.
2 A net force is needed to keep a body in uniform motion.
3 Inertia means resistance to change.
4 The rate of change of momentum is proportional to the applied force.
5 Momentum is a vector quantity.
LAWS OF MOTION (ADDITIONAL)

371721 On a conveyor belt moving with a speed \(u\), sand falls at a constant rate \(\left(\frac{d m}{d t}\right)\), where \(m\) is the mass of sand. The extra force required to maintain the speed of the belt is

1 \(\mathrm{m}\left(\frac{\mathrm{du}}{\mathrm{dt}}\right)\)
2 \(\mathrm{mu}\)
3 \(\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right) / \mathrm{u}\)
4 \(u\left(\frac{d m}{d t}\right)\)
5 \(\frac{1}{\mathrm{~m}}\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right)\)
LAWS OF MOTION (ADDITIONAL)

371722 A system as shown in figure is in equilibrium and is at rest. The spring and string are massless, now the string is cut. The acceleration of the masses ' \(2 \mathrm{~m}\) ' and ' \(\mathrm{m}\) ' just after the string is cut, will be

1 \(\frac{g}{2}\) upwards, g downwards
2 g upwards, \(\frac{g}{2}\) downwards
3 \(g\) upwards, \(2 g\) downwards
4 \(2 \mathrm{~g}\) upwards, \(\mathrm{g}\) downwards
LAWS OF MOTION (ADDITIONAL)

371718 Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth and another one on the Moon. Which of the following statement are "TRUE"?
I) The horizontal distance travelled by the bullet is greater for the moon.
II) The flight time is less for the bullet on the Earth.
III) The velocities of the bullets at impact are the same.

1 III only
2 I and III only
3 I and II only
4 II and III only
LAWS OF MOTION (ADDITIONAL)

371719 A bullet of mass \(10 \mathrm{~g}\) is horizontally fired with velocity \(300 \mathrm{~m} \mathrm{~s}^{-1}\) from a pistol of mass \(1 \mathrm{~kg}\). What is the recoil velocity of the pistol?

1 \(0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
2 \(3 \mathrm{~m} \mathrm{~s}^{-1}\)
3 \(-3 \mathrm{~m} \mathrm{~s}^{-1}\)
4 \(-0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
LAWS OF MOTION (ADDITIONAL)

371720 Which one of the following statement is INCORRECT?

1 The state of rest or uniform linear motion both imply zero acceleration.
2 A net force is needed to keep a body in uniform motion.
3 Inertia means resistance to change.
4 The rate of change of momentum is proportional to the applied force.
5 Momentum is a vector quantity.
LAWS OF MOTION (ADDITIONAL)

371721 On a conveyor belt moving with a speed \(u\), sand falls at a constant rate \(\left(\frac{d m}{d t}\right)\), where \(m\) is the mass of sand. The extra force required to maintain the speed of the belt is

1 \(\mathrm{m}\left(\frac{\mathrm{du}}{\mathrm{dt}}\right)\)
2 \(\mathrm{mu}\)
3 \(\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right) / \mathrm{u}\)
4 \(u\left(\frac{d m}{d t}\right)\)
5 \(\frac{1}{\mathrm{~m}}\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right)\)
LAWS OF MOTION (ADDITIONAL)

371722 A system as shown in figure is in equilibrium and is at rest. The spring and string are massless, now the string is cut. The acceleration of the masses ' \(2 \mathrm{~m}\) ' and ' \(\mathrm{m}\) ' just after the string is cut, will be

1 \(\frac{g}{2}\) upwards, g downwards
2 g upwards, \(\frac{g}{2}\) downwards
3 \(g\) upwards, \(2 g\) downwards
4 \(2 \mathrm{~g}\) upwards, \(\mathrm{g}\) downwards
LAWS OF MOTION (ADDITIONAL)

371718 Identical guns fire identical bullets horizontally at the same speed from the same height above level planes, one on the Earth and another one on the Moon. Which of the following statement are "TRUE"?
I) The horizontal distance travelled by the bullet is greater for the moon.
II) The flight time is less for the bullet on the Earth.
III) The velocities of the bullets at impact are the same.

1 III only
2 I and III only
3 I and II only
4 II and III only
LAWS OF MOTION (ADDITIONAL)

371719 A bullet of mass \(10 \mathrm{~g}\) is horizontally fired with velocity \(300 \mathrm{~m} \mathrm{~s}^{-1}\) from a pistol of mass \(1 \mathrm{~kg}\). What is the recoil velocity of the pistol?

1 \(0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
2 \(3 \mathrm{~m} \mathrm{~s}^{-1}\)
3 \(-3 \mathrm{~m} \mathrm{~s}^{-1}\)
4 \(-0.3 \mathrm{~m} \mathrm{~s}^{-1}\)
LAWS OF MOTION (ADDITIONAL)

371720 Which one of the following statement is INCORRECT?

1 The state of rest or uniform linear motion both imply zero acceleration.
2 A net force is needed to keep a body in uniform motion.
3 Inertia means resistance to change.
4 The rate of change of momentum is proportional to the applied force.
5 Momentum is a vector quantity.
LAWS OF MOTION (ADDITIONAL)

371721 On a conveyor belt moving with a speed \(u\), sand falls at a constant rate \(\left(\frac{d m}{d t}\right)\), where \(m\) is the mass of sand. The extra force required to maintain the speed of the belt is

1 \(\mathrm{m}\left(\frac{\mathrm{du}}{\mathrm{dt}}\right)\)
2 \(\mathrm{mu}\)
3 \(\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right) / \mathrm{u}\)
4 \(u\left(\frac{d m}{d t}\right)\)
5 \(\frac{1}{\mathrm{~m}}\left(\frac{\mathrm{dm}}{\mathrm{dt}}\right)\)
LAWS OF MOTION (ADDITIONAL)

371722 A system as shown in figure is in equilibrium and is at rest. The spring and string are massless, now the string is cut. The acceleration of the masses ' \(2 \mathrm{~m}\) ' and ' \(\mathrm{m}\) ' just after the string is cut, will be

1 \(\frac{g}{2}\) upwards, g downwards
2 g upwards, \(\frac{g}{2}\) downwards
3 \(g\) upwards, \(2 g\) downwards
4 \(2 \mathrm{~g}\) upwards, \(\mathrm{g}\) downwards