Laws of Motion questions
1031 published questions with worked solutions.
- A child stands on a weighing machine inside a lift. When the lift is going down with acceleration g3, the machine shows a reading...
- A car is driven on the banked road of radius of curvature 20 m with maximum safe speed. In order to increase its safety speed by...
- A constant force acts on two different masses independently and produces accelerations A_1 and A_2. When the same force acts on...
- A vehicle is moving with uniform speed along 3 different shaped roads as horizontal, concave and convex. The surface of road on...
- A vehicle is moving with a constant speed of 10 m s in a circular horizontal track of radius 20 m. A bob is suspended from the...
- An inextensible string of length ' ' fixed at one end, carries a mass 'm' at the other end. If the string makes 1 revolutions per...
- A motor cyclist has to rotate in horizontal circles inside the cylindrical wall of inner radius 'R' metre. If the coefficient of...
- An engine pumps water continuously through a hose. Water leaves the hose with velocity v and m is mass per unit length of the...
- Sand is being dropped on a conveyer belt at the rate of 2 kg per second. The force necessary to keep the belt moving with a...
- A block of weight W rests on a horizontal floor with coefficient of static friction μ. It is desired to make the block move by...
- This question has Statement 1 and Statement 2 . Of the four choices given after the Statements, choose the one that best...
- A body starts from rest on a long inclined plane of slope 45°. The coefficient of friction between the body and the plane varies...
- A body of mass ' m ' is tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity. The...
- A block A of mass 4 kg is placed on another block B of mass 5 kg, and the block B rests on a smooth horizontal table. If the...
- A body of mass 5 kg under the action of constant force F = F_x i + F_y j has velocity at t = 0 s as v = (6 i - 2 j ) m/s and at t...
- A bullet of mass 4 g is fired horizontally with a speed of 300 m/s into 0.8 kg block of wood at rest on a table. If the...
- A heavy box is to be dragged along a rough horizontal floor. To do so, the person A pushes it at an angle 30° from the horizontal...
- The angular speed of a flywheel is increased from 600 rpm to 1200 rpm in 10 s. The number of revolutions completed by the...
- A box of mass 15 kg is kept on the floor of a stationary trolley. The coefficient of static friction between the box and the...
- The magnitude and direction of the acceleration produced in a body of mass 5 kg when two mutually perpendicular forces 8 N and 6...
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