PHYSICS
A mass m rotates in a vertical circle of radius R and has a circular speed v, at the top. If the radius of the circle is increased
by a factor of 4, circular speed at the top will be
A) decreased by a factor of 2 B) decreased by a factor of 4 C) increased by a factor of 2 D) increased by a factor of 4
Answers
Answered by
5
option ➡️ A) decreased by a factor of 2
Hope this helps ☺️☺️
ayushmittal2424:
wrong answer
velocity is directly proportional to root(R) ,not inversely hence it should be (C) part.
at top of the vertical circle mv^2/r=mg so v=root(rg) since g is constant hence v is directly proportional to root(r).
Answered by
0
Answer: Velocity at the top decreases by a factor of 2
Explanation:
Velocity is inversely proportional to radius raised to the power half
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