A particle moves in a plane in which and are perpendicular unit vectors. A force, acts on the particle. The particle moves from the origin to the point with position vector m. Find the work done by the force.
A force acts on a particle, causing a displacement . If the work done by the force is 0.02 J, what is the value of ?
A particle moved from point to point along a straight line under the action of the force acting in the opposite direction to the displacement . Find the work done by the force .