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 dropped from 9th stair of multistoried building reaches the ground in 3 sec. in the first second of its free fall, it passes through n stare then n equal to

A storne is dropped from the 25 th storey of a multistored building and it reaches the ground in 5 s . In the first second, it passes through how many storey of the buliding?

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 boy puts a heavy box of mass M of his head and jumps down from the top of a multistoried building to the ground. How much is the force exerted by the box on hishead during his free fall? Does the for greatly increase during the period he balances himself after striking teh ground?

A ball thrown upward from the top of a tower with speed v reaches the ground in t_(1) sec. If this ball is thrown downward from the top of the same tower with speed v it reaches the ground in t_(2) sec. In what time, the ball shall reach the grouned, if it is allowed to fall freely under gravity from the top of the tower?

A ball dropped from the top of a building takes 0.5 sec to clear the window of 4.9 m height. What is the height of building above the window?

From the top of a tower, a stone is thrown up. It reaches the ground in 5 sec. A second stone is thrown down with the same speed and reaches the ground in 1 sec. A third stone is released from rest and reaches the ground in