Question

A mango fruit drops to the ground from the top of its tree which is 5 m high. How long does it take to reach the ground?
A 1.0 s
B 2.0 s
C 3.0 s
D 5 s
E 0.5 s​

Answer 1

answer : the answer is 5 seconds

Answer 2

Answer:

Explanation:

with zero initial velocity we can use the kinematic equation.

h = ½at²

t = √(2h/g)

t = √(2(5)/10)

t = √1

t = 1 s

So probably answer A although the precision is too high. The precision of the input numbers are only a single significant digit, whereas A has two.