Question

An apple falls out of a tree if gravity is the action force that is acting on it what would the reaction force be?

A) momentum

B) air resistance

C) thermal velocity

D) anti-gravity

Answer 1

B) air resistance

Step-by-step explanation:

When an falls out of a tree, gravity is acting downwards, and the reaction force which counters it is air resistance.

Answer 2

B) Air Resistance

Explanation:

A reaction force is the opposite of an action force, so what is opposing gravity? Momentum certainly isn't in this instance of the apple falling. Thermal velocity isn't, and anti gravity is a hypothetical phenomenon.