Kinematics Question 175

Question: A stone falls from a balloon that is descending at a uniform rate of $ 12m/s $ . The displacement of the stone from the point of release after 10 sec is

Options:

A) 490 $ m $

B) 510 $ m $

C) 610 $ m $

D) 725 $ m $

Show Answer

Answer:

Correct Answer: C

Solution:

$ u=12\ m/s $ , $ g=9.8\ m/{{\sec }^{2}} $ , $ t=10\ \sec $

Displacement $ =ut+\frac{1}{2}gt^{2} $

$ =12\times 10+\frac{1}{2}\times 9.8\times 100=610m $



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