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A large truck is moving at [tex]22.0 \, \text{m/s}[/tex]. If its momentum is [tex]125,000 \, \text{kg} \cdot \frac{\text{m}}{\text{s}}[/tex], what is the truck's mass?

A. 176 kg
B. 2750 kg
C. 5680 kg
D. [tex]11,400 \, \text{kg}[/tex]

Answer :

To find the mass of the truck, we can use the formula for momentum:

[tex]\[ \text{Momentum} = \text{mass} \times \text{velocity} \][/tex]

We know the momentum of the truck is [tex]\(125,000 \, \text{kg} \cdot \frac{\text{m}}{\text{s}}\)[/tex] and its velocity is [tex]\(22.0 \, \frac{\text{m}}{\text{s}}\)[/tex]. We need to solve for the mass ([tex]\(m\)[/tex]).

1. Start with the momentum formula:
[tex]\[ 125,000 = \text{mass} \times 22.0 \][/tex]

2. To find the mass, divide both sides of the equation by the velocity:
[tex]\[ \text{mass} = \frac{125,000}{22.0} \][/tex]

3. Perform the division:
[tex]\[ \text{mass} \approx 5681.82 \, \text{kg} \][/tex]

When rounding this to the nearest whole number, the mass is approximately [tex]\(5682 \, \text{kg}\)[/tex].

From the given options, the closest match to our calculated mass is [tex]\(5680 \, \text{kg}\)[/tex]. Therefore, the correct answer is:

5680 kg

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