A body
moves with a
speed of
6m/s for 5s and then covers a distance of 80m with a speed of 8m/s. Calculate its average speed.
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4
Answer:
speed in first time =6m/s
time taken=5s
therefore distance covered=speed*time
=6*5
=30m
speed in second time=8m/s
distance travelled =80m
therefore time taken=distance/speed
=80/8
=10s
average speed=total distance/total time
=80+30/5+10
=110/15
=7.33m/s
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