Question

A car accelerates uniformly from 20 km/h to 30 km/h in 25 minutes calculate the acceleration of the car

Answer 1

u = 20km/hr

v = 30km/hr

t = 25 minutes = 5/12 hrs

Acceleration = v-u/t

=> $\frac{30 - 20}{ \frac{5}{12} }$

=> 10÷(5/12)

=>10×12/5

=>24km/hr²

Therefore body's acceleration is 24km/hr²

Cheers!

Answer 2

. Hey mate...

Innitial velocity(u) =20km/h

Final velocity(v) = 30km/h

Time = 25min or 25/60h

Acceleration (a) = v-u/t

= 30-20/ 25/60

=10*60/25

= 600/25

= 24km/h^2

Or 24*1000/3600

= 6.66666m/s^2

Hope it will help u...

Thanks