Question

A ball of an unknown mass is thrown upward at a speed of 10 m s-1, calculate maximum height reached by ball if acceleration due to gravity is assumed to be 10 m s-1. 5 m

Answer 1

5 is the correct ans.

.

Answer 2

v=u+at

0=10+(-10)(t)

-10=-10t

-10/-10=t

1=t

s=ut+1/2at^2

s=10(1)+1/2(-10)(1)^2

s=10+(-5)

s=5m