Exam 3: Vectors and Two-Dimensional Motion: Part A

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A cart is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 4.0 m/s2.What is the magnitude of the cart's displacement during the first 6.0 s of its motion?

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A horizontal force of 1000 N is needed to overcome the force of static friction between a level floor and a 250-kg crate.If g = 9.8 m/s2,what is the coefficient of static friction?

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Three identical 3.0-kg cubes are placed on a horizontal surface in contact with one another.The cubes are lined up from left to right and an 18-N force is applied to the left side of the left cube causing all three cubes to accelerate to the right.If the cubes are each subject to a frictional force of 3.0 N,what is the magnitude of the force exerted on the right cube by the middle cube in this case?

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A block of mass 5.00 kg rests on a horizontal surface where the coefficient of kinetic friction between the two is 0.200.A string attached to the block is pulled horizontally,resulting in a 3.00 m/s2 acceleration by the block.Find the tension in the string.(g = 9.80 m/s2)

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