A 20 g ball is dropped from rest and falls vertically through air. Its speed increases from 0 to 6.0\,\text{m s}^{-1} in 0.40\,\text{s}. Assuming the acceleration is constant over this time, calculate the resultant force acting on the ball.

PH-1327

Resultant force and F = ma

Physics · Secondary 4 · Hard · Resultant force and F = ma

A 20 g ball is dropped from rest and falls vertically through air. Its speed increases from

0

6.0\,\text{m s}^{-1}

0.40\,\text{s}

. Assuming the acceleration is constant over this time, calculate the resultant force acting on the ball.

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