Question

A car acquires a velocity of 40 km/h in 30m just after the start. Calculate the acceleration of the car.

Answer 1

HOLA !!

V = 40 Km / hr

In m/s ,

40 km / hr = 40 × 5/18

= 100/9 m/s

u = 0

t = 30 m

= 30 × 60

=1800 sec.

Acceleration = v - u / t

= (100/9-0)/1800

= (100/9)/1800

=100/9 × 1/1800

= 1/162 m/s^2.

hope it helps you!!

Answer 2

u=0 m/sec
v=40km/hr=(40×5/18)m/sec=100/9m/sec
time=30min=30×60sec=1800sec
acceleration
a=v-u/t
=100/9-0/1800
=1/162 m/sec^2
=0.006m/sec^2