A ball is released from the top of a tower of height h metres. It takes T seconds to reach the ground. What is the position of the ball in T 3 seconds?

Question

A ball is released from the top of a tower of height h metres. It takes T seconds to reach the ground. What is the position of the ball in T 3 seconds?, 17 h 18 metre from the ground, 8 h 9 metre from the ground, 7 h 9 metre from the ground, h 9 metre from the ground

MARKS App · Accepted Answer

⇒ h = 1 2 g T 2 or T = 2 h g Now, S = 1 2 g ( T 3 ) 2 = g 18 × 2 h g = h 9 Height above the ground = h − h 9 = 8 h 9

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