A person places a cup of coffee on the roof of his carwhile he dashes back into the house for a forgotten item. When hereturns to the car, he hops in and takes off with the coffee cup stillon the roof. (a) If the coefficient of static friction between the coffee cup and the roof of the car is 0.24, what is the maximum acceleration the car can have without causing the cup to slide? Ignorethe effects of air resistance. (b) What is the smallest amount oftime in which the person can accelerate the car from rest to15 m>sand still keep the coffee cup on the roof?

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A: Consider the free body diagram of the block as shown below. Here N denotes the normal reaction…

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A: coefficient of static friction (μs) = 0.80 mass (m) = 60 kg

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A:

Q: ckey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What angle does the…

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A:

Q: *66. The person in the drawing isstanding on crutches. Assume thatthe forceexerted on each crutch by…

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Q: A car is travelling at 50.0 km/h on a flat highway. (a) If the coefficient of frictin between road…

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A:

Q: The coefficient of static friction between hard rubber and normal street pavement is about 0.90. On…

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A: The truck's maximum travel distance in 3.0 seconds without the box sliding must be ascertained.

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A: track length (d) = 400 m acceleration (a) = 26 ms2mass (m) = 990 kg fr = 1000 N

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: