Question

A car travels a distance of 100 km in 2 hours.
(a) Its average speed is 50 km/h.
(b) The car did not travel at 50 km/h all the time.
(c) The car travelled 50 km/h all the time.
(d) all of the above

This is M.C.Q based ques..kindly help with the explanation...not just with the option..​

Answer 1

Answer:

Option 1 is correct

Its average speed is 50km/hr.

Since the car have applied brakes somewhere or must have taken the turn or might have speeded up due to which its acceleration changes due to which its insantaneous velocity changes.

But the average velocity is given by total distance by total time.

So according to the formula average velocity is 50km/hr.

Thanks.

Answer 2

Hope it helps..

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