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04-05-2022
Mathematics

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5. A moving car has kinetic energy. If the mass is doubled what happens to the
amount of kinetic energy? If the speed is doubled what happens to the amount
of kinetic energy?

Respuesta :

Аноним Аноним

04-05-2022

Answer:

See below ~

Step-by-step explanation:

Change in KE if mass is doubled

KE (original) = 1/2mv²
KE (new) = 1/2 x (2m) x v²
KE (new) = mv²
⇒ KE is doubled

Change in KE if speed is doubled

KE (new) = 1/2 x m x (2v)²
KE (new) = 1/2 x 4 x mv²
KE (new) = 2mv²
⇒ KE is quadrupled

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