Question

A car starts from rest it moves with uniform acceleration in 10 seconds it attains a speed of 72 km per hour on a straight road files its acceleration

Answer 1

here is your answer
u=o
v=72*5/18=20
t=10
a=20/10=2m/s^2

Answer 2

Explanation:

Given :-

Ram starts his bike from rest and moves along a straight path. If he attains a speed of 72 km h-1 in 10 s,

To Find :-

Acceleration

Solution :-

We know that

1 km/h = 5/18 m/s

72 km/h = 72 × 5/18 = 4 × 5 = 20 m/s

Now,

a = v - u/t

a = 20 - 0/10

a = 20/10

a = 2/1

a = 2

Hence

Acceleration is 2 m/s²