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Question

A man throws balls with the same speed vertically upwards one after the other at an interval of 2 s What should be the speed of the throw so that more than two balls are in the sky at any rime?

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Solution

When you throw the ball upwards the final velocity becomes zero, therefore,

v=u+at

0=ugt

u=10×2=20m/s

Hence, when you throw a ball with minimum 20m/s in a time interval of two seconds two balls can be in the air simultaneously...


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