When an ice hockey puck weighing 90 g is stationary on the ice, a minimal force of 0.2 N is required to move it. a) Calculate the coefficient of static friction. b) If the puck covers the first 10 cm in 0.5 s (while the 0.2 N force is still applied on the puck), calculate the kinetic friction coefficient.

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: