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 $
