Question

A stone is thrown vertically upwards with a speed of 5m/'s.how high does the stone rise before returning back to earth?given acceleration due to earth s attraction g=9.8m per sec square

Answer 1

Explanation:

u=5 v=0 g=-9.8

2gh=v^2 - u^2

-2×9.8×h=0-25

h=25/19.6 = 1.2 m approx