All of the following objects are moving at the same speed. Which one has the greatest kinetic energy? A. a bicycle B. a motorcycle C. a car D. a semi tractor-trailer truck

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All of the following objects are moving at the same speed. Which one has the greatest kinetic energy? A. a bicycle B. a motorcycle C. a car D. a semi tractor-trailer truck

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Lulu1991id Lulu1991id · Answer 1

Lulu1991id Lulu1991id

The answer is D. According to the formula of kinetic energy, E=(1/2)*m*v². When the speed of these objects are the same, the object with the maximum weight has the greatest kinetic energy.

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Mariahelie345id Mariahelie345id · Answer 2

Mariahelie345id Mariahelie345id

the one with the greatest mass always has more kinetic energy. so the answer is D

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