Question

A speed of a car changes from 20 km/hr to 50 km/hr in 10 seconds. What is the acceleration of the car?

Answer 1

Hii friend,

Acceleration =>VELOCITY/TIME

acceleration => 50-20/10/3600

acceleration =>10800 km/hr.

(or)

acceleration =>1500/18

acceleration => 83.33m/s²

Hope this helps you a little!!!

Answer 2

∆v=30km/h=(30*5)/18m/s

acceleration=∆v/t

acceleration=(150/18)/10

=0.833m/s²