Question

A lift moves down in a mine at the speed of 5m/minute. if the lift is moving down from 20 meters above the ground level what will be its position after half an hour

Answer 1

Step-by-step explanation:

distance is speed multiplied by time...

distance = 5x30 = 150m

but it was 20 m above the ground initially so it will be 150-20 = 130 m below...

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Answer 2

Answer:

130 m under ground

Step-by-step explanation:

Speed of lift- 5 m/min

Time- 1/2 hr= 30 min

Distance traveled= 30 *5=150 m

Position of lift is 150 m -20 m = 130 m under ground