Physics

Problem

A stone of mass

2\,\text{kg}

is dropped from rest from a balcony

20\,\text{m}

above the ground. Neglect air resistance and take

g = 10\,\text{m/s}^2

. Find the speed of the stone just before it reaches the ground. a)

40\,\text{m/s}

10\,\text{m/s}

20\,\text{m/s}

14\,\text{m/s}