a body is released from the top of a tower of height Hm after 2sec it stopped and then instantaneously released what will be its after next 2sec
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What will be its height after the next 2 s? In 2 seconds an object dropped from rest reaches 20 m/s (because g increases velocity by 10 m/s per second). Its average velocity is 10 m/s so it falls 20m in those 2 seconds. Its height will then be (H-40) metres.
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