Question

A stone thrown upward with velocity 20 metre per second. Find the time taken to reach the maximum height?​

Answer 1

Answer:

time taken =2s.

Explanation:

given: u=20m/s (initial velocity)

v=0m/s(final velocity)

g=10m/s^2(approx)(gravitational constant)

by newton's equation of motion,

v=u+gt

0=20+10t

-20/10=t

2=t

as time cannot be negative it has to be taken positive