Question

A car accelerates uniformly from 18km/h to 36km/h in 5 sec . Calculate the acceleration?

Answer 1

18 kmph = 5 m/s

36 kmph = 10 m/s

a = Δv / t

a = 10-5 / 5

a = 1 m/s²

Answer 2

Initial velocity (u): -18 km/he

Final velocity (v): -36 km/he

Time(t): - 5 sec

Acceleration (a): -?

V=u+at

36=18+a×5

36=90a

a=36/90

a=2.5m/sec.

Thank you