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Q. A 3.06 kg block slides down a frictionless plane inclined 18.6' to the horizontal. If the length of the plane's surface is 1.43 m, how much work is done, and by what force?

Q. A car is traveling at 46.0 km/h on a flat highway.

(a) If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop?

What is the stopping distance when the surface is dry and the coefficient of friction is 0.600?

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