Newton’s Law of Motion
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI05:LAWS OF MOTION

363485 A disc of mass \(100\;g\) is kept floating horizontally in air by firing bullets, each of mass \(5\;g\) with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in opposite direction. The velocity of each bullet at the time of impact is

1 \(196\;cm\;{s^{ - 1}}\)
2 \(9.8\;cm\;{s^{ - 1}}\)
3 \(98\;cm\;{s^{ - 1}}\)
4 \(980\;cm\;{s^{ - 1}}\)
PHXI05:LAWS OF MOTION

363486 100 balls each of mass \(m\) moving with speed \(v\) simultaneously strike a wall normally and reflected back with same speed, in time \(t(s).\) The total force exerted by the balls on the wall is

1 \(\dfrac{m v}{100 t}\)
2 \(\frac{{100\,mv}}{t}\)
3 \(\frac{{200\,mv}}{t}\)
4 \({200\,mvt}\)
PHXI05:LAWS OF MOTION

363487 Assertion :
A glass ball is dropped on concrete floor can easily get broken compared if it is dropped on wooden floor.
Reason :
On concrete floor, glass ball will take less time to come to rest.

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 Both Assertion and reason are incorrect.
PHXI05:LAWS OF MOTION

363488 Figure shows the displacement of a particle going along the \(X\)-axis as a function of time. The force acting on the particle is zero in the regions.
supporting img

1 \(AB,CD\)
2 \(BC,DE\)
3 \(CD,AB\)
4 \(DE,CD\)
PHXI05:LAWS OF MOTION

363485 A disc of mass \(100\;g\) is kept floating horizontally in air by firing bullets, each of mass \(5\;g\) with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in opposite direction. The velocity of each bullet at the time of impact is

1 \(196\;cm\;{s^{ - 1}}\)
2 \(9.8\;cm\;{s^{ - 1}}\)
3 \(98\;cm\;{s^{ - 1}}\)
4 \(980\;cm\;{s^{ - 1}}\)
PHXI05:LAWS OF MOTION

363486 100 balls each of mass \(m\) moving with speed \(v\) simultaneously strike a wall normally and reflected back with same speed, in time \(t(s).\) The total force exerted by the balls on the wall is

1 \(\dfrac{m v}{100 t}\)
2 \(\frac{{100\,mv}}{t}\)
3 \(\frac{{200\,mv}}{t}\)
4 \({200\,mvt}\)
PHXI05:LAWS OF MOTION

363487 Assertion :
A glass ball is dropped on concrete floor can easily get broken compared if it is dropped on wooden floor.
Reason :
On concrete floor, glass ball will take less time to come to rest.

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 Both Assertion and reason are incorrect.
PHXI05:LAWS OF MOTION

363488 Figure shows the displacement of a particle going along the \(X\)-axis as a function of time. The force acting on the particle is zero in the regions.
supporting img

1 \(AB,CD\)
2 \(BC,DE\)
3 \(CD,AB\)
4 \(DE,CD\)
PHXI05:LAWS OF MOTION

363485 A disc of mass \(100\;g\) is kept floating horizontally in air by firing bullets, each of mass \(5\;g\) with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in opposite direction. The velocity of each bullet at the time of impact is

1 \(196\;cm\;{s^{ - 1}}\)
2 \(9.8\;cm\;{s^{ - 1}}\)
3 \(98\;cm\;{s^{ - 1}}\)
4 \(980\;cm\;{s^{ - 1}}\)
PHXI05:LAWS OF MOTION

363486 100 balls each of mass \(m\) moving with speed \(v\) simultaneously strike a wall normally and reflected back with same speed, in time \(t(s).\) The total force exerted by the balls on the wall is

1 \(\dfrac{m v}{100 t}\)
2 \(\frac{{100\,mv}}{t}\)
3 \(\frac{{200\,mv}}{t}\)
4 \({200\,mvt}\)
PHXI05:LAWS OF MOTION

363487 Assertion :
A glass ball is dropped on concrete floor can easily get broken compared if it is dropped on wooden floor.
Reason :
On concrete floor, glass ball will take less time to come to rest.

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 Both Assertion and reason are incorrect.
PHXI05:LAWS OF MOTION

363488 Figure shows the displacement of a particle going along the \(X\)-axis as a function of time. The force acting on the particle is zero in the regions.
supporting img

1 \(AB,CD\)
2 \(BC,DE\)
3 \(CD,AB\)
4 \(DE,CD\)
PHXI05:LAWS OF MOTION

363485 A disc of mass \(100\;g\) is kept floating horizontally in air by firing bullets, each of mass \(5\;g\) with the same velocity at the same rate of 10 bullets per second. The bullets rebound with the same speed in opposite direction. The velocity of each bullet at the time of impact is

1 \(196\;cm\;{s^{ - 1}}\)
2 \(9.8\;cm\;{s^{ - 1}}\)
3 \(98\;cm\;{s^{ - 1}}\)
4 \(980\;cm\;{s^{ - 1}}\)
PHXI05:LAWS OF MOTION

363486 100 balls each of mass \(m\) moving with speed \(v\) simultaneously strike a wall normally and reflected back with same speed, in time \(t(s).\) The total force exerted by the balls on the wall is

1 \(\dfrac{m v}{100 t}\)
2 \(\frac{{100\,mv}}{t}\)
3 \(\frac{{200\,mv}}{t}\)
4 \({200\,mvt}\)
PHXI05:LAWS OF MOTION

363487 Assertion :
A glass ball is dropped on concrete floor can easily get broken compared if it is dropped on wooden floor.
Reason :
On concrete floor, glass ball will take less time to come to rest.

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 Both Assertion and reason are incorrect.
PHXI05:LAWS OF MOTION

363488 Figure shows the displacement of a particle going along the \(X\)-axis as a function of time. The force acting on the particle is zero in the regions.
supporting img

1 \(AB,CD\)
2 \(BC,DE\)
3 \(CD,AB\)
4 \(DE,CD\)