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Science

Physics

N W

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 19CQ: What is the last thing you should do when solving a problem? Explain.

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Question

The mass of the system of the rocket sled shown in the figure is 2100 kg, and the force of friction opposing the motion is known to be 640 N. The thrust for the rocket sled is 2.59 × 10⁴ N.

f = 640 N

What is its acceleration in m/s²? a=

Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.

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7. Solve for unknown parameters