Question

A car start from rest and acquire a velocity of 54km/h in 2 seconds find the
1 the acceleration
2 distance travelled by car asume motion of car is iniform

Answer 1

Answer:

acceleration= 7.5 m/$s^{2}$

distance travelled= 15m

Explanation:

Acceleration:

final velocity= 54km/hr= 15m/s

initial velocity=0m/s

acceleration= v - u/t

                    = 15-0/2 = 7.5m/$s^{2}$

Distance Travelled:

S= ut+ $\frac{1}{2}$a$t^{2}$

 = (0)(2) + $\frac{1}{2}$*(7.5)($2^{2}$)

 = 0 + 15

therefore distance travelled is 15m

hope it helps ^w^