Question

A person with a mass of 15 kg is walking downhill at a velocity of 10 m/s. What's the walker's momentum?
Question 2 options:

A)

15 kg-m/s

B)

150 kg-m/s

C)

75 kg-m/s

D)

5 kg-m/s

Answer 1

To calculate the momentum of the walker, you can use the formula for momentum (p):

\[ p = m \times v \]

where:
- \( m \) is the mass of the walker (in kg),
- \( v \) is the velocity (in m/s).

Given:
- Mass (m) = 15 kg
- Velocity (v) = 10 m/s

Now, substitute the values into the formula:

\[ p = 15 \, \text{kg} \times 10 \, \text{m/s} = 150 \, \text{kg-m/s} \]

So, the walker's momentum is **150 kg-m/s**.

The correct answer is:

**B) 150 kg-m/s**