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A ball is dropped from the top of a building. The ball takes 0.50 s to fall past the 3m length of a window, which is some distance below the top of the building. (a) How fast was the ball going as it passed the top of the window? (b) How far is the top of the window from the point at which the ball was dropped? Assume acceleration g in free fall due to gravity to be 10 m//s^(2) downwards.

A ball is dropped from the top of a building. The ball takes 0.50 s to fall past the 3m length of a window, which is some distance below the top of the building. (a) How fast was the ball going as it passed the top of the window? (b) How far is the top of the window from the point at which the ball was dropped? Assume acceleration g in free fall due to gravity to be 10 m//s^(2) downwards.

A ball is dropped from the top of a building. The ball takes 0.50 s to fall past the 3m length of a window, which is some distance below the top of the building. (a) How fast was the ball going as it passed the top of the window? (b) How far is the top of the window from the point at which the ball was dropped? Assume acceleration g in free fall due to gravity to be 10 m//s^(2) downwards.

An object of mass 8 kg starts to move from rest under the action of a variable force F=3xN where x is the distance (in m) covered by the object. If initially, the position of the object is x = 2 m, then find its speed ("in m s"^(-1)) when it crosses x = 10 m.

An object of mass 8 kg starts to move from rest under the action of a variable force F=3xN where x is the distance (in m) covered by the object. If initially, the position of the object is x = 2 m, then find its speed ("in m s"^(-1)) when it crosses x = 10 m.