Physics Middle School

The unicorn suddenly ran through the school at 5.6 m/s and it has a mass of 450 kg. What is the unicorn’s kinetic energy?

Answers

Answer 1

Answer:

KE = 567000 J

planation:

Answer 2

The kinetic energy of the unicorn can be find out from its mass and velocity. The kinetic energy of unicorn is 7056 J.

What is kinetic energy ?

Kinetic energy is a form of energy on an object generated by virtue of its motion. It is related to the mass and velocity of the object by the expression written below:

Ke = 1/2 m v²

When an object starts moving from rest, its potential energy converts to kinetic energy. As the mass and velocity increases, kinetic energy increases.

Given that, m = 450 kg

v = 5.6 m/s

then , Ke = 1/2 450 kg × (5.6 m/s )² = 7056 J.

Therefore, the kinetic energy of the unicorn is 7056 J.

Find more on kinetic energy:

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The correct answer is b:))!!
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