A man throws balls with the same speed vertically upwards one after the other at an interval of two seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given 𝑔 = 9.8 𝑚/𝑠 2 )

April 11, 2022

by Ezee_Notes

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Physics Problems

Question : A man throws balls with the same speed vertically upwards one after the other at an interval of two seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given 𝑔 = 9.8 𝑚/𝑠 2 )

(A) At least 0.8 𝑚/𝑠

(B) Any speed less than 19.6 𝑚/𝑠

(D) More than 19.6

Answer : option (D)

Solution :

A man throws balls with the same speed vertically upwards one after the other at an interval of two seconds. What should be the speed of the throw so that more than two balls are in the sky at any time (Given 𝑔 = 9.8 𝑚/𝑠 2 )