Question

exam lesson name: motion and forces
exam number: 700696rr
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question 7 of 20 :
select the best answer for the question.

1. a person with a mass of 15 kg is walking downhill at a velocity of 10 m/s. whats the walkers momentum?

○ a. 75 kg-m/s
○ b. 15 kg-m/s
○ c. 5 kg-m/s
○ d. 150 kg-m/s

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Explanation:

Step1: Recall the momentum formula

The formula for momentum \( p \) is \( p = m \times v \), where \( m \) is mass and \( v \) is velocity.

Step2: Substitute the given values

Given \( m = 15 \, \text{kg} \) and \( v = 10 \, \text{m/s} \), substitute into the formula: \( p = 15 \times 10 \).

Step3: Calculate the result

\( 15 \times 10 = 150 \, \text{kg - m/s} \).

Answer:

D. 150 kg-m/s