Question

What is the momentum of a 50-kg ice skater gliding across the ice at a speed of 5 m/s?




250 kg·m/s

500 kg·m/s

50 kg

Answer 1

To calculate the momentum of an object, you can use the formula:

\[
\text{Momentum} (p) = \text{mass} (m) \times \text{velocity} (v)
\]

For the ice skater:

- Mass (\(m\)) = 50 kg
- Velocity (\(v\)) = 5 m/s

Now, substituting the values into the formula:

\[
p = 50 \, \text{kg} \times 5 \, \text{m/s} = 250 \, \text{kg·m/s}
\]

Thus, the momentum of the ice skater is **250 kg·m/s**.