Laws of Motion questions
1031 published questions with worked solutions.
- A mass 'm' suspended from a spring stretches it by 5 cm when on the surface of the earth. The mass is then taken on to a height...
- A constant force acting on a body of mass 3.0 kg changes its speed from 2.0 m/s to 3.5 m/s in 25 s. The direction of motion of...
- A weight is suspended from the mid-point of a rope, whose ends are at the same level. In order to make the rope perfectly...
- A 40 N block supported by two ropes. One rope is horizontal and the other makes an angle of 30^ with the ceiling. The tension in...
- An aircraft is moving with uniform velocity 150 m/s in the space. If all the forces acting on it are balanced, then it will...
- A block of mass 'M' is pulled along a smooth horizontal surface with a rope of mass 'm' by force 'F'. The acceleration of the...
- The ratio of weights of a man inside a lift when it is stationary and when it is going down with a uniform acceleration 'a' is...
- A mass of 1 kg is suspended by a string. It is first lifted up with an acceleration of 4.9 m/s² and then lowered down with same...
- A body of mass 5kg is moving in a straight line. The relation between its displacement and time is x=(t^3-2t-10) m. What is the...
- A body of mass 2kg is acted upon by two each of magnitude 1N and inclined at 60° with each other. The acceleration of the body in...
- A mass 2 3 kg is acted upon by two forces which are inclined to each other at 60^ and each of magnitude 1N. The acceleration of...
- A metal sphere is hanging from the ceiling of a vehicle. If the vehicle is moving along the horizontal road with uniform...
- 'n' number of balls each having mass 'm' and velocity 'u' hit a wall elastically and normally in 2 seconds. The force exerted by...
- Two forces each of magnitude 'P' act at right angles. Their effect is neutralized by a third force acting along their bisector in...
- A Diwali cracker releases 25 gram gas per second, with a speed of 400 ms^ -1 after explosion. The force exerted by gas on the...
- ‘n’ balls each of mass ‘m’ moving with the same velocity ‘u’ hit a wall elastically and normally in 2 second. The force exerted...
- The weight of a man in a lift moving upwards with an acceleration ‘a’ is 620 N. When the lift moves downwards with the same...
- A force produces an acceleration of 6 ms^ -2 in a body of mass ‘m_1’ kg. The same force produces an acceleration of 4 ms^ -2 in...
- A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring balance reads 49 N, when...
- A man of weight ‘W’ is standing in a lift which is moving upwards with acceleration ‘a’. The apparent weight of the man is...
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