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) 5πJ

D) 10πJ

Show Answer

Answer:

Correct Answer: A

Solution:

[a] W=Fscos90=zero



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