A balloon gong upward with a velocity of 12 ms−1is at a height of 65 m from the earth’s surface at any instant. Exactly at this instant a ball drops from it. How much time will the ball take in reaching the surface of earth? (g = 10 ms−2)

April 12, 2022

by Ezee_Notes

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Physics Problems

Question : A balloon gong upward with a velocity of 12 ms−1is at a height of 65 m from the earth’s surface at any instant. Exactly at this instant a ball drops from it. How much time will the ball take in reaching the surface of earth? (g = 10 ms−2)

(A) 5 s

(B) 6 s

(D) None of these

Answer : option (A)

Solution :

A balloon gong upward with a velocity of 12 ms−1is at a height of 65 m from the earth’s surface at any instant. Exactly at this instant a ball drops from it. How much time will the ball take in reaching the surface of earth? (g = 10 ms−2)