At what speed does a 1000 kg compact car have the same

Chapter 10, Problem 3E

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QUESTION:

Problem 3E

At what speed does a 1000 kg compact car have the same kinetic energy as a 20,000 kg truck going 25 km/h?

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QUESTION:

Problem 3E

At what speed does a 1000 kg compact car have the same kinetic energy as a 20,000 kg truck going 25 km/h?

ANSWER:

Step 1 of 2

A car of mass \(m_{1}\) has the same kinetic energy as that of a truck of mass \(m_{2}\). We are going to find the speed of the car.

The mass of the car \(\mathrm{m}_{1}=1000 \mathrm{~kg}\)

The mass of the truck \(\mathrm{m}_{2}=20,000 \mathrm{~kg}\)

The speed of the truck \(\mathrm{v}_{2}=25 \mathrm{~km} / \mathrm{h}\)

 

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