If a body is travelling at a uniform speed; its speed at any time will be equal to average speed of the whole journey. True/False

True

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False

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Solution

The correct option is A
True

A body is travelling at a uniform speed when it travels equal distances in equal intervals of time.

For e.g. - A bus travels 10 km in an interval of 1 hr. It travels 10km in 2^nd 1 hr interval. Then the speed of the bus in any of the interval will be same i.e. 10km/hr (Speed= Distance/Time)

Now, the average speed = $\frac{T o t a l d i s t a n c e c o v e r e d}{T o t a l t i m e}$

Total distance covered in 2 intervals = 10 + 10 = 20km

Total time taken = 1 +1 = 2hrs

Average speed= $\frac{20}{2}$ = 10km/hr

We can clearly see that the speed of bus in either of the intervals (10km/hr) is equal to the average speed of the bus (10km/hr)

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