Question

A ball is thrown straight down out of a window. It travels for 0.5 s and has a final velocity of 16 m/s. What was the initial velocity of the ball?

Answer 1

Explanation:

given: v=16m/s

t=0.5s

a=10m/s^2

find: u

by,

v=u+at

16=u+10(0.5)

16=u+5

11=u

so initial velocity will be 11m/sec