Kinematic Equations
PHXI03:MOTION IN A STRAIGHT LINE

362353 A body dropped from top of a tower fall through 40 \(m\) during the last two seconds of its fall. The height of tower is \((g = {\rm{10\, m/}}{{\rm{s}}^{\rm{2}}})\)

1 \(60\,m\)
2 \(45\,m\)
3 \(80\,m\)
4 \(50\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362354 Assertion :
Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.
Reason :
The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362355 If a ball is thrown vertically upward with speed \(u\), the distance covered during the last \(t\) second of its ascent is

1 \(ut - \left( {g{t^2}/2} \right)\)
2 \(\left( {ut + gt} \right)t\)
3 \(ut\)
4 \(g{t^2}/2\)
PHXI03:MOTION IN A STRAIGHT LINE

362356 A person throws balls into air vertically upward in regular intervals of time of one second. The next ball is thrown when the velocity of the ball thrown earlier becomes zero. The height to which the balls rise is… (Assume \(10\,m{s^{ - 2}}\))

1 \(5\,m\)
2 \(10\,m\)
3 \(7.5\,m\)
4 \(20\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362357 You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed \(v\). You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed \(v\), releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other. This location is

1 At the halfway point between window and ground
2 Below this point (mentioned in option 1)
3 Above this point (mentioned in option 1)
4 Cannot be determined
PHXI03:MOTION IN A STRAIGHT LINE

362353 A body dropped from top of a tower fall through 40 \(m\) during the last two seconds of its fall. The height of tower is \((g = {\rm{10\, m/}}{{\rm{s}}^{\rm{2}}})\)

1 \(60\,m\)
2 \(45\,m\)
3 \(80\,m\)
4 \(50\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362354 Assertion :
Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.
Reason :
The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362355 If a ball is thrown vertically upward with speed \(u\), the distance covered during the last \(t\) second of its ascent is

1 \(ut - \left( {g{t^2}/2} \right)\)
2 \(\left( {ut + gt} \right)t\)
3 \(ut\)
4 \(g{t^2}/2\)
PHXI03:MOTION IN A STRAIGHT LINE

362356 A person throws balls into air vertically upward in regular intervals of time of one second. The next ball is thrown when the velocity of the ball thrown earlier becomes zero. The height to which the balls rise is… (Assume \(10\,m{s^{ - 2}}\))

1 \(5\,m\)
2 \(10\,m\)
3 \(7.5\,m\)
4 \(20\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362357 You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed \(v\). You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed \(v\), releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other. This location is

1 At the halfway point between window and ground
2 Below this point (mentioned in option 1)
3 Above this point (mentioned in option 1)
4 Cannot be determined
PHXI03:MOTION IN A STRAIGHT LINE

362353 A body dropped from top of a tower fall through 40 \(m\) during the last two seconds of its fall. The height of tower is \((g = {\rm{10\, m/}}{{\rm{s}}^{\rm{2}}})\)

1 \(60\,m\)
2 \(45\,m\)
3 \(80\,m\)
4 \(50\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362354 Assertion :
Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.
Reason :
The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362355 If a ball is thrown vertically upward with speed \(u\), the distance covered during the last \(t\) second of its ascent is

1 \(ut - \left( {g{t^2}/2} \right)\)
2 \(\left( {ut + gt} \right)t\)
3 \(ut\)
4 \(g{t^2}/2\)
PHXI03:MOTION IN A STRAIGHT LINE

362356 A person throws balls into air vertically upward in regular intervals of time of one second. The next ball is thrown when the velocity of the ball thrown earlier becomes zero. The height to which the balls rise is… (Assume \(10\,m{s^{ - 2}}\))

1 \(5\,m\)
2 \(10\,m\)
3 \(7.5\,m\)
4 \(20\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362357 You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed \(v\). You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed \(v\), releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other. This location is

1 At the halfway point between window and ground
2 Below this point (mentioned in option 1)
3 Above this point (mentioned in option 1)
4 Cannot be determined
PHXI03:MOTION IN A STRAIGHT LINE

362353 A body dropped from top of a tower fall through 40 \(m\) during the last two seconds of its fall. The height of tower is \((g = {\rm{10\, m/}}{{\rm{s}}^{\rm{2}}})\)

1 \(60\,m\)
2 \(45\,m\)
3 \(80\,m\)
4 \(50\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362354 Assertion :
Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.
Reason :
The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362355 If a ball is thrown vertically upward with speed \(u\), the distance covered during the last \(t\) second of its ascent is

1 \(ut - \left( {g{t^2}/2} \right)\)
2 \(\left( {ut + gt} \right)t\)
3 \(ut\)
4 \(g{t^2}/2\)
PHXI03:MOTION IN A STRAIGHT LINE

362356 A person throws balls into air vertically upward in regular intervals of time of one second. The next ball is thrown when the velocity of the ball thrown earlier becomes zero. The height to which the balls rise is… (Assume \(10\,m{s^{ - 2}}\))

1 \(5\,m\)
2 \(10\,m\)
3 \(7.5\,m\)
4 \(20\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362357 You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed \(v\). You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed \(v\), releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other. This location is

1 At the halfway point between window and ground
2 Below this point (mentioned in option 1)
3 Above this point (mentioned in option 1)
4 Cannot be determined
PHXI03:MOTION IN A STRAIGHT LINE

362353 A body dropped from top of a tower fall through 40 \(m\) during the last two seconds of its fall. The height of tower is \((g = {\rm{10\, m/}}{{\rm{s}}^{\rm{2}}})\)

1 \(60\,m\)
2 \(45\,m\)
3 \(80\,m\)
4 \(50\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362354 Assertion :
Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.
Reason :
The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI03:MOTION IN A STRAIGHT LINE

362355 If a ball is thrown vertically upward with speed \(u\), the distance covered during the last \(t\) second of its ascent is

1 \(ut - \left( {g{t^2}/2} \right)\)
2 \(\left( {ut + gt} \right)t\)
3 \(ut\)
4 \(g{t^2}/2\)
PHXI03:MOTION IN A STRAIGHT LINE

362356 A person throws balls into air vertically upward in regular intervals of time of one second. The next ball is thrown when the velocity of the ball thrown earlier becomes zero. The height to which the balls rise is… (Assume \(10\,m{s^{ - 2}}\))

1 \(5\,m\)
2 \(10\,m\)
3 \(7.5\,m\)
4 \(20\,m\)
PHXI03:MOTION IN A STRAIGHT LINE

362357 You drop a ball from a window located on an upper floor of a building. It strikes the ground with speed \(v\). You now repeat the drop, but your friend down on the ground throws another ball upward at the same speed \(v\), releasing her ball at the same moment that you drop yours from the window. At some location, the balls pass each other. This location is

1 At the halfway point between window and ground
2 Below this point (mentioned in option 1)
3 Above this point (mentioned in option 1)
4 Cannot be determined