Express work done in terms of force and displacement.

Power is the rate at which work is done. Express power in terms of force and velocity.

Write an expression for work done in terms of rectangular components of force and displacement.

What is the work done if force and displacement are inclined at 60^@ to each other.

Show with the help of a vector diagram that the work done is a scalar product of force and displacement.

Give the expression for work done if angle between force vecF and displacement vecs is theta . Also find the dimensions and SI unit of work.