Question

a 45 kg cheetah runs to the left at -14.9 m/s. what is its momentum? p = ? kg·m/s round your answer to the nearest tenth. remember: p = m·v enter the sign (+ or -) and the magnitude.

Explanation:

Step1: Recall momentum formula

$p = m \cdot v$

Step2: Substitute given values

$p = 45\ \text{kg} \times (-14.9\ \text{m/s})$

Step3: Calculate and round result

$p = -670.5\ \text{kg} \cdot \frac{\text{m}}{\text{s}}$

Answer:

$-670.5\ \text{kg} \cdot \frac{\text{m}}{\text{s}}$