A body is dropped from the roof of a multistoried building it passes the ceiling of the 15th storey at a speed of `20ms^(-1)` if the height of each storey is 4m, the number of stereys in the building is `(takeg=10ms^(-2)` and neglect air resistance)

A body is dropped from the roof of a multi storied building. It passes the ceiling of the 15th storey at a speed of 20 ms^(-1) . If the height of each storey is 4m, the number of storeys in the building is (take g = 10ms^(-2) and neglect air resistance)

A ball dropped from 9th storey of a multistoried building reaches the ground in 3 sec.In the 1st sec of its free fall,it passes through 'n' storeys, then 'n' is

A ball is dropped from a top of a 100 m high building. At the ssame time another ball is thrown up from the ground with a speed of 20ms^(-1) . At what time will the balls meet?

A ball dropped from the 9th story of a multi - storeyed building reaches the ground in 3 second. In the first second of its free fall, it passes through storeys, where n is equal to ( Take g=10 m s^(-2) )

A ball dropped from the 9th story of a multi - storeyed building reaches the ground in 3 second. In the first second of its free fall, it passes through storeys, where n is equal to ( Take g=10 m s^(-2) )

A ball dropped from the 9th story of a multi-storyed building reaches the ground in 3sec-one.In the first second of its free fall,it passes through n storeys,where n is equal to (Take g= 10 ms^(-2))

If the object dropped vertically from the top of the building takes 2 second to reach the ground then the height of the building is (g=10ms^(-2))