Question

At a certain instant an auto driver is driving at a speed of 30 km/ hr then he uniformly accelerates the auto and after 2.5 minutes the speed of his auto becomes 60km/hr what is the average speed of the auto what is the value of uniform acceleration during the given time interval

Answer 1

average speed =total distance /total time
=60+30/2.5
=90×1000/60×60×2.5
=10m/s
uniform acceleration =v2-v1/t
=60-30/2.5
=30×1000/60×60×2.5
=3.33m/s^2

Answer 2

Answer:

45km h^-1 or 12.5ms^-1, 1/8ms^-2