Question

A toy car falls to the ground in 0.4sec. Calculate it's speed just before striking ground (g = 10 m/s).

Answer 1

Answer:

t=0.4 sec, g=10m/s, u=0, v=? v= 4m/s. Hence, speed of toy car falls is 4m/

Answer 2

Answer:

t= 0•4 sec

g= 10 m/ s

v= ?

u= 0

using the equation of motion

v= u+at

v= u+ gt

v= 0 + 10×0.4

v = 4 m/ s