Kinematics Question 402

Question: A stone is dropped from a r it’sing balloon at a height of 76 m above the ground and reaches the ground in 6s. What was the velocity of the balloon when the stone was dropped? Take g=10m/s2

Options:

A) 523m/s upward

B) 523m/s downward

C) 3m/s

D) 9.8m/s

Show Answer

Answer:

Correct Answer: A

Solution:

S=ut+12at2

76=4×612×10×(6)2u=523 m/s



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