Final answer:
To determine a car's velocity from its momentum and mass, the momentum equation is rearranged to find velocity as momentum divided by mass. Using the values given, the car's velocity is calculated to be 25.45 m/s.
Step-by-step explanation:
The student's question is about calculating a car's velocity when given its momentum and mass. The formula for momentum (p) is the product of mass (m) and velocity (v), which is expressed as p = m × v. Thus, to find the velocity (v), the equation can be rearranged to v = p / m.
Using the provided values:
- Momentum (p) = 14,000 kg·m/s
- Mass (m) = 550 kg
Calculating for velocity:
v = 14,000 kg·m/s ÷ 550 kg = 25.45 m/s
Therefore, the car's velocity is 25.45 m/s, which corresponds to option (a).