A merry-go-round spins freely when Janice moves quickly to the center along a ra

Question

A merry-go-round spins freely when Janice moves quickly to the center along a radius of

the merry-go-round. It is true to say that:

A) the moment of inertia of the system decreases and the angular speed increases

B) the moment of inertia of the system decreases and the angular speed decreases

C) the moment of inertia of the system decreases and the angular speed remains the same.

D) the moment of inertia of the system increases and the angular speed increases.

E) the moment of inertia of the system increases and the angular speed decreases.

Explanation / Answer

moment of inertia = MR^2

effective R is dereasing then moment of inertia of the system will be decrease.

angular speed remains the same.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.