Question #129925

If an object of mass 4kg goes round a circle of a radius 0.5m in 3.142, what is the force towards the centre(π=3.142)

Expert's answer

Th force towards the centre is the centripetal force

"F=\\frac{mV^{2}}{r}"

The distance round a circle is the circumference of a circle "2\\pi"

Time taken to go round circle "=3.142s"

Velocity of object

"=distance\/time=V =\\frac{2\\pi}{3.142}"

"=\\frac{2\\times3.142}{3.142}=2ms^{-1}"

"F=\\frac{mV^{2}}{r}"

"=\\frac{4\\times2^{2}}{0.5}"

"=32N"

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Richard12.10.21, 23:23Thnks so much...you are a life saver

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