A ball is thrown downwards with speed of 10 m/s from a tower of height 500 meters what will be its speed when it touch the ground and what will be time taken
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Actually firstly use second equation of motion, h=ut+1/2 gt^2 by solving this u will get 10 second as time
Then third equation of motion, v^2 - u^2 =2gh n by solving this u will get 100m/s as your velocity.
Then third equation of motion, v^2 - u^2 =2gh n by solving this u will get 100m/s as your velocity.
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