50kg iceskater turns a bend at 7m/sec. if the radius of the curve is 5 meters, what is the centripetal force provided by the friction between the blade of the skate and the ice?

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  1. Whoever wrote this question does not realize that the force they are asking for is NOT a friction force. It is a lateral force on the EDGE of the blade that keeps the skater on a circular path.

    You should mention this to your teacher, if you have one.

    If it were a friction force, it would be opposite to the direction of motion and would result in a slowing down of the skater.

    The force that are asking for is the centripetal force, M V^2/R

    You can do the numbers yourself

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