Kinematics Question 780

Question: A motor cycle driver doubles it’s velocity when he it’s having a turn.The force exerted outwardly will be[AFMC 2002]

Options:

A) Double

B)Half

C) 4 times

D)$ \frac{1}{4} $ times

Show Answer

Answer:

Correct Answer: C

Solution:

$ F=\frac{mv^{2}}{r} $

therefore $ F\propto v^{2} $ i.e. force will become 4 times.



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