Question

HELP PLEASE
If an object of mass 10kg falls from a height of 5km, what will be its velocity after 2.5 seconds?

Answer 1

24.5 or 25

Explanation:

V=U+AT

V=0+AT

V=AT

V=9.8×2.5=24.5m/s (if g is taken as 9.8)

V=25m/s(if g is taken as 10 m/s-2)