1.State and prove the Work-Energy Theorem for a constant force.
2.A force $\vec{F} = (3\hat{i} + 4\hat{j})\text{ N}$ displaces a body by $\vec{d} = (5\hat{i} + 2\hat{j})\text{ m}$. Find work done.
3.A ball of mass $0.2\text{ kg}$ is dropped from height $10\text{ m}$. Find its kinetic energy just before hitting the ground.
4.Define average power and instantaneous power with SI units.
