Question

A body is thrown with speed 20 m/s vertically upward it will return to thrower 's hand after a time of ( assume g= 10 m/s^2)​

Answer 1

Answer:

Given that,

Initial velocity u=20m/s

Final velocity v=0

Now, from equation of motion

v=u−gt

0=20−10t

t

1

=

10

20

t

1

=2s

Total time

t=2t

1

t=2×2

t=4s

Hence, the time is 4 s