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Classical Mechanics: Momentum and Velocity

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A 4.0 kg toy race car can move along an x axis. The figure below gives Fx of the force acting on the car, which begins at rest at time t = 0. (The vertical axis is marked in increments of 2 N.)

See the attached document for the necessary graph.

(a) What is the momentum of the car at t = 6.0 s

(b) What is the momentum of the car at t = 9.0 s

(c) What is the car's velocity at t = 7.0 s?

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Solution Summary

Momentum and velocity are calculated for a 4.0 kg toy car.