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Let a body travels with a speed of 63km/h for 1h. After that let it travels with a speed of 1km/h for another hour. The total distance travelled(D) will be
(63*1 + 1*1)=64km. Also total time taken(T) will be (1+1)=2h. Thus,
Average speed=D/T=64km/2h=32km/h ;which is clearly higher than the final speed(1km/h).
Thus, Av. speed may be higher than the final speed.
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∙ 13y ago
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