Which of the following has the greatest kinetic energy?
a
o
a 20 kg stone traveling at 10 m/s
o
a 40 kg ball traveling at 4 m/s
o
a 30 kg lead pipe traveling at 6 m/s
o
a 50 kg pillow traveling at 2 m/s

a 20 kg stone traveling at 10 m/s.

Explanation:

In this case the Kinetic Energy (KE) is the energy processes due to  the stone's motion. To calculate the energy you should apply the formula as follows:

Now, if you want to know what of the cases has the greatest kinetic energy, you need to calculate each one of these:

1. a 20 kg stone traveling at 10 m/s

2. a 40 kg stone traveling at 4 m/s

3. a 30 kg stone traveling at 6 m/s

4. a 40 kg stone traveling at 4 m/s

Finally, if you compare the results of KE you could conclude that the greatest kinetic energy is 1000 J and correspond to 20 kg stone traveling at 10 m/s.

Rgds!

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

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