every floor of a multi storey building is 4 m high . a lift moves 2 meters per second . how long will take to from 5th floor to 28 floor
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Step-by-step explanation:
if the floor height is 4m and the lift moves 2m/s,
then, the lift will cover one floor in
(4÷2)sec
=2sec
the lift has to cover
(28-5)floors
=23 floors
the lift covers 1 floor in 2 sec
so, it will cover 23 floor in
(23×2)sec
46sec
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