A boy does a work of 800 J is dragging a sach of rice through a distance of 10 m. what is the magnitude of force applied by the boy?

How much force is applied on the body when 780 J of work is done in displacing the body through a distance of 30 m in the direction of force?

A boy whirls a stone of small mass in a horizontal circle of radius 1.5m and at height 2.9m above level ground. The string breacks and the stone flies off horizontally and strikes the ground after travelling a horizontal distance of 10m . What is the magnitude of the centripetal acceleration of the stone while in circular motion ?

A force of 25 N causes a displacement of 4 m in its own direction. What is the magnitude of work done ?

A body, acted upon by a force of 50N, is displaced through a distance 10m in direction making an angle of 60^(@) with the force. Find the work done by the force.

Find the work done if a force of 1000 N is applied on a load and the load moves through a distance of 50 cm.

A man pulls a box on a horizontal floor through a distance of 20 m with a force of 30 N applied along a rope tied to the box and making and angle of 60° with the horizontal. Calculate the work done.

A force F is applied on a block of mass M . The block is displaced through a distance d in the direction of the force. What is the work done by the force on the block? Does the internal energy change because of this work?

A force is applied on a body of mass 0.9kg that is at rest. The force is applied for a duration of 5s and as a result the body covers a distance of 250 m. Find the magnitude of the force.

A lawn roller has been pushed by a gardener through a distance of 30 m. What will be the work done by him, if he applies a force of 30 kg-wt in the direction inclined at 60^(@) to the ground?

A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate: The magnitude of the force.