Question

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

Answer 1

t=0.4 sec, g=10m/s, u=0, v=?  

v= u + at  

v= 0 + 10*0.4

v= 4m/s.

Hence, speed of toy car falls is 4m/s.