A coin is dropped from rest from a balcony above the ground

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A coin is dropped from rest from a balcony

19.6\,\text{m}

above the ground. Taking

g = 9.8\,\text{m/s}^2

and downward as positive, calculate the time the coin takes to reach the ground. (a) 4\,s (b) 1.4\,s (c) 2\,s (d) 2.8\,s