18-11-2019
Physics

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A 50kg I’ve skater goes around in a circle of radius 5.0m at a constant speed of 3.0m/s on a level Ice rink. What is the magnitude of the horizontal force that the ice exerts on the skates?

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18-11-2019

Answer: 90N

Explanation:

When resolving in a circular path we talk about Centripetal force

Mathematically;

Centripetal force (f) = mv^2 / r

Where m = mass

V = velocity

r = radius

Therefore;

50 x 3^2 / 5

= 90N

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