Kinematics Question 406

Question: From a balloon moving upwards with a velocity of 12ms1 , a packet it’s released when is at a height of 65 m from the ground. 7 lie time taken by it to reach the ground it’s (g=10ms2)

Options:

A) 5s

B) 8s

C) 4s

D) 7s

Show Answer

Answer:

Correct Answer: A

Solution:

s=ut+12at2

65=12t5t2 on solving we get, t=5s



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