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Rici V.

Rici V.

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INSTANT ANSWER

car of mass 2500 kg is traveling at 12 m/s to the right when it collides with a jeep (mass of jeep = 1560 kg) traveling in the opposite direction. In the collision the two vehicles become entangled and they both move together at 5 m/s to the left. At what speed was the jeep traveling at before the collision?

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INSTANT ANSWER

You are standing at the intersection of two roads. You see a motorcyclist moving due North at 15 m/s. At the same time, you see your friend Ernie, in a car moving at a velocity of 23 m/s due West relative to you. The magnitude and direction of the motorcyclist’s velocity as measured by Ernie is:

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ANSWERED

Mahipal Kumawat verified

Numerade educator

A 7 kg block is pushed across a horizontal surface by the 45 N force shown in the diagram below. The block moves at a constant velocity of 2 m/s. How big is the coefficient of kinetic friction between the block and the surface?

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INSTANT ANSWER

A 7 kg block is pushed across a horizontal surface by the 45 N force shown in the diagram below. The block moves at a constant velocity of 2 m/s. How big is the coefficient of kinetic friction between the block and the surface?

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INSTANT ANSWER

Three forces shown below act on a 5 kg particle. What is the magnitude of the acceleration of the particle?

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