Work Energy And Power Question 210
Question: A particle describe a horizontal circle of radius 0.5 m with uniform speed. The centripetal force acting is 10 N. The work done in describing a semicircle is
Options:
A) zero
B) 5J
C) $ 5\pi J $
D) $ 10\pi J $
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ W=Fscos90{}^\circ =zero $
