Question

the velocity of a car in 10sec changes from 10m/s to 50m/s what will be it's acceleration?

Answer 1

acceleration=v-u/t

a= 50-10/10
a=40/10
a=4m/sec^2

hope it helps you........

Answer 2

t=10 seconds
u=10m/s
v=50m/s
a=?
v=u+at
50=10+a×10
50-10=10a
40=10a
a=40/10
a=4m/s^2

I hope this will help u...