Physics Two Dimensional Motion Question 351
Question: A particle is moving in a circle of radius R with constant speed v, if radius is double then its centripetal force to keep the same speed should be
[BCECE 2005]
Options:
A) Doubled B) Halved C) Quadrupled D) Unchanged
Show Answer
Answer:
Correct Answer: B
Solution:
$ \ F=\frac{mv^{2}}{r} $ . For same mass and same speed if radius is doubled then force should be halved.
BETA
