3.Explains how the conservation of momentum is a consequence of Newton ‘s third law .

4.In a common example happens daily, the following cases:

a) An object that has zero rotational kinetic energy but its translational kinetic energy is not zero. b) An object that has zero translational kinetic energy but its rotational kinetic energy is not zero. c) An object that has neither rotational and translational kinetic energy. 

5.An example of a system without net torque, but not zero net force.

6.Give an example of a system that has zero net force, but its net torque is not zero.