A body of mass 2 kg initially at rest moves under the action of 0 an applied horizontal force of 7 N on a table with coefficient of kinetic friction= 0.1. Compute the (a) work done by the applied force in 10 s, .

A body of mass 2 kg initially at rest moves under the action of 0 an applied horizontal force of 7 N on a table with coefficient of kinetic friction= 0.1. Compute the change in kinetic energy of the body in 10 s, and interpret your results

A block of mass 0.1 kg is held against a wall by applying a horizontal force of 5N on the block. If the coefficient of friction between the block and the wall is 0.5, what is the magnitude of the frictional force acting on the block?

A body of mass 2kg is lying on a rough inclined plane of inclination 30^@ . Find the magnitude of the force needed to make the block move up the incline. Coefficient of static friction is 0.2

A body of mass 15 kg is moving with a velocity 20 m/s. Calculate the distance travelled by the body before stopping, if a force of 30 N is applied on the body in the direction opposite to the direction of motion.

A mass of 5.0 kg is pulled along a horizontal plane by a force in a direction making an angle 45° with the horizontal.The body moves with uniform velocity through a distance of 10 metre. Find the work done by the force(Co-efficient of firction=0.3).

Certain force acting on a 20 kg mass changes its velocity from 5 m s^-1 to 2m s^-1 . Calculate the work done by the force.

A ball of mass 1.2 kg moving with velocity 20cm/s collides with another body of equal mass at rest.Find the loss of K.E of the system,assuming that co -efficient of restitutionis 0.6.

Figure 5.18 shows a man standing stationary with respect to a horizontal conveyor belt that is accelerating with 1 m s^2 . What is the net force on the man? If the coefficient of static friction between the man’s shoes and the belt is 0.2, up to what acceleration of the belt can the man continue to be stationary relative to the belt? (Mass of the man = 65 kg.)

Two bodies of masses 10 kg and 20 kg respectively kept on a smooth, horizontal surface are tied to the ends of a light string. A horizontal force F = 600 N is applied to (i) A, (ii) B along the direction of string. What is the tension in the string in each case?