The electromagnetic spectrum is divided into regions by Group of answer choices a.wavelengths and frequencies b.the way they are
1 answer:
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Answer:
a) One-ninth the force acting on object A.
Explanation:
First, we derive an expression for the centripetal force acting on both objects.
For object A, centripetal force is:
For object B, centripetal force is:
We are given that they have the same mass and they move in circles of the same radius.
If object A completes three times as many rotations as object B, then, object must have 3 times the speed of object B.
Hence:
Therefore, becomes:
=>
Therefore, the net centripetal force acting on object B is one-ninth of the force acting on object A.