A rigid body of mass
2kg initially at rest moves under the action of an applied horizontal force at
7N on a table with coefficient of kinetic friction
=0.1, Calculate the:
1. Work done by the applied force on the body in 10s
2. Work done by friction on the body in 10s
3. Work done by the net force on the body in 10s
4. Change in kinetic energy of the body in 10s