Laws Of Motion ...

Free body diagram of a situation is shown below. The net force is known, however, the magnitude of few of the forces is not known. The magnitude of the unknown forces C and D will be:

If a block moving up at an inclined plane with θ =30° with a velocity 5 m/s , stops after 0.5 sec , then coefficient of friction is:

 A person is sliding an iron box across the floor. Its free body diagram will be

 Free body diagram of a box pushed with constant velocity along a rough horizontal surface is

A lift of mass 1000kg , which is moving with an acceleration of 1 m/s² in upward direction has tension developed in its string equal to:

25 N force is required to raise 75 kg mass from a pulley. If rope is pulled 12 m , then the load is lifted to 3 m , the efficiency of pulley system will be:

An ice cart of mass 60 kg rests on a horizontal snow patch with coefficient of static friction 1/3 . Assuming that there is no vertical acceleration , find the magnitude of maximum horizontal force required to move the ice cart.

A mass of 100 kg is resting on a rough inclined plane of 60^o. If the coefficient of friction is 0.5, then the least force acting parallel to the plane to keep the mass in equilibrium is

Three blocks connected together lie on a horizontal frictionless table and pulled to the right with a force of F = 100 N. If m₁ = 10 kg, m₂ = 20 kg, m₃ = 30kg. Then the tension T₁ and T₂ will be

Block A has mass 10 kg and block B has mass 5 kg. They are connected by an inextensible rope which passes over the mass less and frictionless pulley. Select the correct free body diagrams for two blocks from the given options.