Application of Negative Numbers in Speed Distance Time
A rock climbe...
Question
A rock climber climbs a hill at the rate of 3 m/s. If he starts climbing from 20 m above the ground surface, how much time will he take to climb the hill which is 200 m high?
A
30 sec
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B
40 sec
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C
50 sec
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D
60 sec
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Solution
The correct option is D 60 sec Rate at which climber climbs the hill = 3 m/s
Total distance to be climbed by the climber = 200 m -20 m = 180 m
Time taken by the climber to climb = 180m3m/sec = 60 sec.