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3 years ago

Find the kinetic energy of a block twice as massive (20kg) moving at the same speed

Physics

1 answer:

Digiron [165]3 years ago

6 0

10v²

Explanation:

Given parameters:

Mass of block(twice) = 20kg

Unknown:

Kinetic energy = ?

Solution:

Kinetic energy is the energy due to the motion of a body.

K.E = $\frac{1}{2}$ mv²

m is the mass of the body

v is the velocity of the body

since the velocity in this problem is unknown, let velocity be represented by v.

Mass of the block = 10kg

K.E = $\frac{1}{2}$ x 10 x v² = 5v²

This is the kinetic energy for the 10kg block which is half of the 20kg mass given;

If the mass is doubled, the kinetic energy will be doubled;

therefore, the kinetic energy is:

K.E = 2( 5v²) = 10v²

Learn more:

Kinetic energy brainly.com/question/6536722

#learnwithBrainly

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