Which of the following best describes the difference between and centripetal for

Question

Which of the following best describes the difference between and centripetal force? A. Centripetal force is the linear version of the centrifugal force. B. Centripetal force points inward while centripetal force points outward, together they combine to result in circular motion. C. Neither really exist the meaning of force in physics can't be really defined in terms. D. Centripetal force does not exist and is used because it sounds scientific force on the other hand does exist and points outward on a circle, keeping things moving in circle motion. E. Centrifugal force is a "fictitious force" because it exists only in certain reference frames. Centripetal force is real and keeps things moving is a circle by pointing toward the center of the circle. If a 10 kg ball is swung in a circle of radius 2 meters, what force is required if the ball is to be kept at a speed of 3 meters per second? 45 N 50 N 90 N 180 N None of these are even remotely close.

Explanation / Answer

7)

Here option E is the correct explanation for diffrence between centripetal and centrifugal forces.

8) F = mv^2/R

F= 10*9/2

F= 45 N

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