Question

1. A car increases its speed from 20 km/h to 50 km/h in 10 seconds. What is its
acceleration?​

Answer 1

Answer:

Acceleration is change in velocity per unit time

a = (v2-v1)/(t2-t1)

v2-v1 = 30 kmph

= 30×5/18 m/s

= 25/3 m/s

t2-t1 = 10s

a= 25/(3×10) = 5/6 m/s^2

Answer 2

Hope this helps...........