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JEE Main Physics question

PhysicsMotion in a Straight LineJEE Main

A ball is dropped from the top of a building. The ball takes 0.5 s to fall past the 3 m length of a window some distance from the top of the building. What speed does the ball have as it passes the top of the window? ( ms)

Answer: (D)

Solution

Let be the speed at the top of the window: ms.

Question ID VK-151921