Blades 60 100

A skater with an initial speed of 7.60 m / s is gliding on the ice. Air resistance is negligible?

A skater with an initial speed of 7.60 m / s is gliding across the ice. Air resistance is negligible. (A) The coeficient of kinetic friction between and ice skate blades is 0.100. Find the deceleration caused by kinetic friction. (B) How far will the skater before travel come to rest?

(A) The resistance force = mu * mg Thus, the deceleration a = mu * g = 0.1 * 10 = 1 m / ss (b) allows the use v ^ 2 = u ^ 2 - 2 as where v = 0 and s = distance of travel => s = u ^ 2 / 2 = 7.6 ^ 2 / 2 * 1 = 28.88 m, I hope it help.

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