An athlete often runs before taking a long jump. This is an example of : (i) Newton’s first law (ii) inertia of rest (iii) inertia of motion (iv) both (a) and (c)

both (a) and (c)

Reason — An athlete often runs before taking a long jump. The reason is that by running he brings his entire body in the state of motion. When the body is in motion, it becomes easier to take a long jump. Hence, it is an example of Newton’s first law and inertia of motion.