In a flat, the lift takes 15 s to go from ground floor to the fourth floor without stopping. if the height of each floor is 5m what is the average speed of the lifts
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Answer:
Total time taken to reach fourth floor from ground floor=15s
Total distance travelled =5×4=20m
AVERAGE SPEED=total distance travelled/ total time taken
=20/15
=1.3m/s
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