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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 :

Sure! Let's solve this step by step.

1. Identify the given values:
- Momentum (p) = 125,000 kg⋅m/s
- Velocity (v) = 22.0 m/s

2. Recall the formula for momentum:
Momentum is calculated using the formula:
[tex]\[
p = m \cdot v
\][/tex]
Where [tex]\( p \)[/tex] is momentum, [tex]\( m \)[/tex] is mass, and [tex]\( v \)[/tex] is velocity.

3. Rearrange the formula to solve for mass:
To find the mass ([tex]\( m \)[/tex]), we rearrange the formula to:
[tex]\[
m = \frac{p}{v}
\][/tex]

4. Substitute the given values into the equation:
[tex]\[
m = \frac{125,000 \, \text{kg} \cdot \frac{m}{s}}{22.0 \, \frac{m}{s}}
\][/tex]

5. Perform the division:
[tex]\[
m = \frac{125,000}{22.0} \approx 5681.82 \, \text{kg}
\][/tex]

6. Approximate the result to match the given options:
[tex]\[
m \approx 5680 \, \text{kg}
\][/tex]

So, the truck's mass, rounded to match the given choices, is approximately 5680 kg.

Therefore, the correct answer is:
[tex]\[
5680 \, \text{kg}
\][/tex]

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Rewritten by : Barada

The answer is C. 5680 kg