Problem 4.49 Part A What is the momentum of the system of three carts before the

Question

Problem 4.49

Part A

What is the momentum of the system of three carts before the collision?

Express your answer with the appropriate units.

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Correct

Part B

What is the momentum of the system of three carts after the collision?

Express your answer with the appropriate units.

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Correct

Part C

Can the system of three carts be isolated during the collision, according to these data?

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Problem 4.49

The three carts described in the table collide simultaneously. Momentum px(kgm/s) Cart Before collision After collision 1 +8.0 -1.0 2 -1.0 +2.0 3 -3.0 +3.0

Part A

What is the momentum of the system of three carts before the collision?

Express your answer with the appropriate units.

pi = 4.0 kgms

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Correct

Part B

What is the momentum of the system of three carts after the collision?

Express your answer with the appropriate units.

pf = 4.0 kgms

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Correct

Part C

Can the system of three carts be isolated during the collision, according to these data?

Can the system of three carts be isolated during the collision, according to these data? No Yes

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Explanation / Answer

A) momentum ( mv ) before collision :

p = 8 + (-1) + (-3) = 4 kg.m/s

B) momentum after collision,

p = -1 +2 +3 = 4 kg.m/s

C) yes, as data for individual cart is given .

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