A horizontal force of 210 N is exerted on a 2.0-kg discus as it rotates uniformly in a

Chapter 5, Problem 4P

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QUESTION:

Problem 4P

A horizontal force of 210 N is exerted on a 2.0-kg discus as it rotates uniformly in a horizontal circle (at arm’s length) of radius 0.90 m. Calculate the speed of the discus.

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QUESTION:

Problem 4P

A horizontal force of 210 N is exerted on a 2.0-kg discus as it rotates uniformly in a horizontal circle (at arm’s length) of radius 0.90 m. Calculate the speed of the discus.

ANSWER:

Solution 4P

Step 1 of 1

We have to calculate the speed of the discus.

The speed of the discus can be calculated using the expression for centripetal force.

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