High School

In the Indianapolis 500, the race cars used weigh about 750 kg (mass), and the record-setting qualifier had a momentum of 80,000 kg·m/s. What was the car's velocity (speed)?

A) 172 m/s
B) 100 m/s
C) 215 m/s
D) 255 m/s

Answer :

Final answer:

The car's velocity is approximately 107 m/s.

Explanation:

To calculate the car's velocity, we can use the formula:



Momentum = mass x velocity



Given that the car's momentum is 80,000 kg-m/s and its mass is 750 kg, we can rearrange the formula to solve for velocity:



velocity = momentum / mass = 80,000 kg-m/s / 750 kg = 106.67 m/s



Rounding to the nearest whole number, the car's velocity is approximately 107 m/s.

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