Question

An object dropped from a diff falls with a constant acceleration of 10m/s?
Find its speed 2sec after it was dropped.​

Answer 1

Answer-

u=0m/s

t=2s

a=10m/s

So,

v=u+at

=>v=0+10×2

=>v=20m/s

Answer is 20m/s

Answer 2

Answer:

u = 0m/s

v = -10m/s ( retardation )

time = 2 sec

velocity = displacement/time

= 10/2

speed = 5m/s