Question

a car increase its speed from 30 kilometre per hour to 40 kilometre per hour in 10 hours then its acceleration is​

Answer 1

Answer:

acceleration is given by the change in velocity wrt to time.

so the total change in velocity is 30km/s.

acceleration is given by taking care of unit of the time and distance both 10×360030×1000 =121in m/s.

so none of the options is correct so the answer is D.