A stone is thrown horizontally from the top of a cliff. One second after it has left your hand its vertical distance below the top of the cliff is
A) 15 m.
B) 5 m.
C) 10 m.

Question

Quizplus · Accepted Answer

The vertical distance below the top of the cliff can be calculated using the formula for the distance covered under free fall, $d = \frac{1}{2}gt^2$, where $g = 9.8 \, m/s^2$ is the acceleration due to gravity and $t = 1 \, s$ is the time. Substituting these values gives $d = \frac{1}{2} \times 9.8 \times 1^2 = 4.9 \, m$, which is approximately 5 meters.

A Stone Is Thrown Horizontally from the Top of a Cliff