Question

A body is thrown vertically upward with velocity 20m/s . How long time
it remains in air (g=10m/s2
)
a) 1 sec b) 2 sec c) 4 sec d) 8 sec

Answer 1

Answer:

we need the weight to calculate it

Explanation:

if you get weight of object then,

mass of object ×10m/s×20m/s

Answer 2

Answer:

4 sec

Explanation:

I hope it helps you