Question

A stone is thrown from a building of height 30m
with velocity 5m/s vertically upwards.
Find t by the stone to reach the grounds
[g=10m/s²]​

Answer 1

Answer:

2.94 seconds

Explanation:

First of all take first Equation of motion

And solve accordingly V=U+at

Find T for going upward then find T for coming down ward by formula

S=Ut + 1/2(at²)