Question

A stone is thrown vertically upward with a speed of 20m/second square.how high will it go if we take g= 10m/sec square.

Answer 1

Helloo!!

Using the first equation,

v=u+at

0=20−10t

10t=20

t=2

Using the third equation,

v2=u2+2as

02=202+2×(−10)×s

20s=400

s=20

hope it helps