1 joule of work is said to be done when a force of 1 N acting on an object moves it by 1 metre in the direction of force.

When force applied on an object causes it to moves in the direction of force

Define work. When is work said to be done by a force ?

Write an expression for the work done when a force is acting on an object in the direction of its displacement.

Find out the work done when a force of 30 N displaces a body through 8 m in the direction of the applied force.

Calculate the amount of work done, when a force of 25 N displaces a body through 10 m, in its own direction.

A force of 5 N is acting on an object. The object is displaced through 2 m in the direction of the force (Fig. 11.2). If the force acts on the object all through the displacement, then work done is 5 N xx 2 m =10 N m or 10 J .

A: The work done by magnetic field on a moving charge is zero. R: The magnetic force acting on a moving charge has no component in the direction of velocity.

An object of mass 10kg moves at a constant speed of 10 ms^(-1) . A constant force, that acts for 4 sec on the object, gives it a speed of 2ms^(-1) in opposite direction. The force acting on the object is :

30 joules work is done, when a force 'F' causes a displacement of 5 m. the magnitude of force is :

Work done by a force on an object is zero, if