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Roberto has twice the mass his sister Mary has but runs at the same velocity as Mary. Will his kinetic energy be twice as much? Show your work.
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Roberto has twice the mass his sister Mary has but runs at the same velocity as Mary. Will his kinetic energy be twice as much? Show your work.

User Eugene Sukh
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Answer:

Yes, Roberto will have twice the kinetic energy

Step-by-step explanation:

The equation for kinetic energy is Ke = 1/2(m)v^2

The variable m is not squared by anything, which means it is directly proportional to the equation. If you were to multiply m by 2, it would in turn multiply the entire equation by 2, getting you an outcome with twice as much kinetic energy.

User PaxPrz
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