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  • 25-07-2016
  • Physics
Answered

An 85 kg object is moving at a constant speed of 15 m/s in a circular path,which has a radius of 20 meters. What centripetal force is exterted on the body?

Verified Answer :

AL2006
AL2006 AL2006
  • 25-07-2016

As always,. F = M A.

Centripetal acceleration = V-squared / R. So F=M V-squared/R. =. 85 x 225 / 20. = 956.25 Newton's (about 215 pounds). That's the force required to keep that mass moving at that speed around that circle. If the force is less, or not there, then the 85 kg moves slower, or leaves that path.

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