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Q. A car is traveling at 43.2 km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.808. If anti-lock brakes are properly applied then no skidding occurs and the static coefficient of friction is 0.988.

Q. A 155-g baseball, moving along the axis with speed 32.0 m/s , strikes a fence at a 45 degree angle and rebounds along the y axis with unchanged speed. Give the x- and y- components of its change in momentum.

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