F = kv^2/r
That means that
Fr/v^2 = k, and is constant. So, you want F such that
F*10/20^2 = 300*5/15^2
The centripetal force of an object moving around a circle varies directly with the square of the speed and inversely as the radius of the object. Suppose the force is 300 N when the speed is 15 m/s and the radius is 5m. What would the force be if the speed was increased to 20 m/s and the radius was increased to 10m?
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