Question

Hands of an athlete in a race is which type of motion

Answer 1

Answer:Oscillatory motion

Explanation: as the athlete hand is moving to and fro.

Answer 2

Answer:

The motion of "hands of an athlete" in a race is a periodic motion, like that of a simple pendulum.

Explanation:

• The “motion which repeats itself at "regular interval of time" is known as periodic motion.”
• The athletes while running swing their hand in a repeated uniform ‘to and fro’ motion to push their body front and keep it in rhythm with the leg motion, to keep their 'body in balance' while running and to save their energy while running.
• They keep their elbows at a "90-degree angle" and swing their arms in a top-down motion and front and back motion.