Problem: A square, with a side length of 40 cm, has a 5 kg mass at each of its corners. If the square rotates about an axis through its center, perpendicular to the plane of the square, with an angular speed of 5 rad/s, how much kinetic energy does the square have?

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Problem Details

A square, with a side length of 40 cm, has a 5 kg mass at each of its corners. If the square rotates about an axis through its center, perpendicular to the plane of the square, with an angular speed of 5 rad/s, how much kinetic energy does the square have?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Rotational Kinetic Energy concept. You can view video lessons to learn Intro to Rotational Kinetic Energy. Or if you need more Intro to Rotational Kinetic Energy practice, you can also practice Intro to Rotational Kinetic Energy practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 3 minutes and 43 seconds to solve this problem. You can follow their steps in the video explanation above.