Answer to Question #196784 in Physics for Marissa

Question #196784

A battery powered toy car accelerates from 0.0 m/s to 8.5 m/s. It’s mass is 0.55 kg. The chemical store in its battery is decreased by 30 J. Calculate the efficiency of this process.

Expert's answer

"\\eta=\\frac{mv^2}{2E}\\\\\\eta=\\frac{(0.55)(8.5)^2}{2(30)}=0.66"

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Comments

Uche

09.12.23, 18:21

Thank you, it was correct

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