EVERY FLOOR OF A 20 STOREY BUILDING IS 5M HIGH.IF A LIFT MOVES 2M/SECOND FIND HOW LONG WILL IT TAKE TO MOVE FROM 3rd FLOOR TO 15th FLOOR
15 - 3 = 12
12 * 15 = 180 meters total
time = 180 meters/2 meters/sec = 90 sec
To calculate the time it will take for the lift to move from the 3rd floor to the 15th floor, we need to determine the total distance the lift needs to cover and divide it by the speed at which the lift is moving.
Given that every floor in the building is 5m high, the height difference between the 3rd floor and the 15th floor would be:
(15 - 3) floors * 5m/floor = 12 floors * 5m/floor = 60m
Since the lift is moving at a speed of 2m/second, we can calculate the time it will take to cover a distance of 60m by dividing the distance by the speed:
Time = Distance / Speed = 60m / 2m/s = 30 seconds
Therefore, it will take the lift approximately 30 seconds to move from the 3rd floor to the 15th floor.