Circular Motion
PHXI05:LAWS OF MOTION

363236 A vehicle of mass \(200\,kg\) is moving along a levelled curved road of radius \(70\,m\) with angular velocity of \(0.2\,rad{\rm{/}}s\). The centripetal force acting on the vehicle is

1 \(2800\;N\)
2 \(2400\;N\)
3 \(560\;N\)
4 \(14\;N\)
PHXI05:LAWS OF MOTION

363237 One end of a string of length \(l\) is connected to a particle of mass \(m\) and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed \(v\), the net force on the particle (directed towards the centre) is
(\(T\) is the tension in the string)

1 \(T + \frac{{m{v^2}}}{l}\)
2 \(0\)
3 \(T\)
4 \(T - \frac{{m{v^2}}}{l}\)
PHXI05:LAWS OF MOTION

363238 A car travels with constant speed on a circular road on a level ground. In fig, \({F_{air}}\) is the force of air resistance on the car. Which of the other forces shown best represents the horizontal force of the road on the car’s tires?
supporting img

1 \({F_C}\)
2 \({F_D}\)
3 \({F_A}\)
4 \({F_B}\)
PHXI05:LAWS OF MOTION

363239 Study the following statements
I.
When a stone is rotated at greater speed in circular path, greater force is required.
II.
When a stone is rotated in a circle of smaller radius, greater force is required
III.
When stone is rotated at greater speed in a circle of smaller radius, smaller force is required.
Which of the following statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
PHXI05:LAWS OF MOTION

363236 A vehicle of mass \(200\,kg\) is moving along a levelled curved road of radius \(70\,m\) with angular velocity of \(0.2\,rad{\rm{/}}s\). The centripetal force acting on the vehicle is

1 \(2800\;N\)
2 \(2400\;N\)
3 \(560\;N\)
4 \(14\;N\)
PHXI05:LAWS OF MOTION

363237 One end of a string of length \(l\) is connected to a particle of mass \(m\) and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed \(v\), the net force on the particle (directed towards the centre) is
(\(T\) is the tension in the string)

1 \(T + \frac{{m{v^2}}}{l}\)
2 \(0\)
3 \(T\)
4 \(T - \frac{{m{v^2}}}{l}\)
PHXI05:LAWS OF MOTION

363238 A car travels with constant speed on a circular road on a level ground. In fig, \({F_{air}}\) is the force of air resistance on the car. Which of the other forces shown best represents the horizontal force of the road on the car’s tires?
supporting img

1 \({F_C}\)
2 \({F_D}\)
3 \({F_A}\)
4 \({F_B}\)
PHXI05:LAWS OF MOTION

363239 Study the following statements
I.
When a stone is rotated at greater speed in circular path, greater force is required.
II.
When a stone is rotated in a circle of smaller radius, greater force is required
III.
When stone is rotated at greater speed in a circle of smaller radius, smaller force is required.
Which of the following statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
PHXI05:LAWS OF MOTION

363236 A vehicle of mass \(200\,kg\) is moving along a levelled curved road of radius \(70\,m\) with angular velocity of \(0.2\,rad{\rm{/}}s\). The centripetal force acting on the vehicle is

1 \(2800\;N\)
2 \(2400\;N\)
3 \(560\;N\)
4 \(14\;N\)
PHXI05:LAWS OF MOTION

363237 One end of a string of length \(l\) is connected to a particle of mass \(m\) and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed \(v\), the net force on the particle (directed towards the centre) is
(\(T\) is the tension in the string)

1 \(T + \frac{{m{v^2}}}{l}\)
2 \(0\)
3 \(T\)
4 \(T - \frac{{m{v^2}}}{l}\)
PHXI05:LAWS OF MOTION

363238 A car travels with constant speed on a circular road on a level ground. In fig, \({F_{air}}\) is the force of air resistance on the car. Which of the other forces shown best represents the horizontal force of the road on the car’s tires?
supporting img

1 \({F_C}\)
2 \({F_D}\)
3 \({F_A}\)
4 \({F_B}\)
PHXI05:LAWS OF MOTION

363239 Study the following statements
I.
When a stone is rotated at greater speed in circular path, greater force is required.
II.
When a stone is rotated in a circle of smaller radius, greater force is required
III.
When stone is rotated at greater speed in a circle of smaller radius, smaller force is required.
Which of the following statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
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PHXI05:LAWS OF MOTION

363236 A vehicle of mass \(200\,kg\) is moving along a levelled curved road of radius \(70\,m\) with angular velocity of \(0.2\,rad{\rm{/}}s\). The centripetal force acting on the vehicle is

1 \(2800\;N\)
2 \(2400\;N\)
3 \(560\;N\)
4 \(14\;N\)
PHXI05:LAWS OF MOTION

363237 One end of a string of length \(l\) is connected to a particle of mass \(m\) and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed \(v\), the net force on the particle (directed towards the centre) is
(\(T\) is the tension in the string)

1 \(T + \frac{{m{v^2}}}{l}\)
2 \(0\)
3 \(T\)
4 \(T - \frac{{m{v^2}}}{l}\)
PHXI05:LAWS OF MOTION

363238 A car travels with constant speed on a circular road on a level ground. In fig, \({F_{air}}\) is the force of air resistance on the car. Which of the other forces shown best represents the horizontal force of the road on the car’s tires?
supporting img

1 \({F_C}\)
2 \({F_D}\)
3 \({F_A}\)
4 \({F_B}\)
PHXI05:LAWS OF MOTION

363239 Study the following statements
I.
When a stone is rotated at greater speed in circular path, greater force is required.
II.
When a stone is rotated in a circle of smaller radius, greater force is required
III.
When stone is rotated at greater speed in a circle of smaller radius, smaller force is required.
Which of the following statement(\(s\)) is/are correct?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III