Multiple Choice
In the context of circular motion, which force is considered to be ?
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8. Centripetal Forces & Gravitation
Centripetal Forces
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Which formula can be used to find the centripetal acceleration of an orbiting object?
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Verified step by step guidance1
Understand that centripetal acceleration is the acceleration directed towards the center of a circular path that keeps an object moving in that circle.
Recall the relationship between velocity, radius, and centripetal acceleration for an object moving in a circle at constant speed.
Use the formula for centripetal acceleration, which relates the speed \(v\) of the object and the radius \(r\) of the circular path: \(a = \frac{v^2}{r}\).
Note that this formula shows acceleration increases with the square of the speed and decreases with a larger radius.
Recognize that other formulas given, such as \(a = \frac{F}{m}\) (Newton's second law), are general but not specific to centripetal acceleration.
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