Law Of Motion - Study Mode
[#91] The velocity of a car increases uniformly from 18 kmhr -1 to 72 kmhr -1 in 10 s. Calculate the acceleration of the car.
Correct Answer
(A) 1.5 ms -2
[#92] An athelete runs for some time before the high jump so that the inertia of the . . . . . . . . helps him take the long jump.
Correct Answer
(D) speed
[#93] Statement I When a gun is fired, i.e. it placing pushes back with much less velocity than the velocity of the bullet. Statement II Velocity of the recoiling gun is less because the gun is much heavier than bullet. According to the Principle of conservation of momentum when the gun is fired, momentum of gun and bullet system remains constant.
Correct Answer
(A) Both the statements are individually true and statement II is the correct explanation of statement I
[#94] The distance-time graph for the motion of an object moving with a constant speed is a
Correct Answer
(C) straight line
[#95] The velocity of a car increases uniformly from 18 kmh -1 to 36 kmh -1 in 5sec. Calculate the acceleration of the car.
Correct Answer
(B) 1ms -2