A 500-G Ball Moves in a Circle 40 Cm in Radius

question 39

Multiple Choice

A 500-g ball moves in a circle 40 cm in radius at a speed of 4 m/s. The centripetal force on the ball is

• A) 10 N.
• B) 20 N.
• C) 40 N.
• D) 80 N.

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