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A Car Moves 3 Times as Fast as Another Car. Compared to the Slower Car, the Faster Car Has __ 9 Times the Kinetic Energy 6 Times the

Problemas

A car moves 3 times as fast as another car. Compared to the slower car, the faster car has __ 9 times the kinetic energy 6 times the kinetic energy 3 times the kinetic energy 12 times the kinetic energy

Roztwór

Silvia élite · Tutor durante 8 años
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Respuesta

The faster car has 9 times the kinetic energy of the slower car.

Explicación

## Step 1The kinetic energy of an object is given by the formula:### where is the mass of the object and is its velocity.## Step 2If the velocity of the car is tripled, the kinetic energy will increase by a factor of , which is 9. This is because the velocity is squared in the formula for kinetic energy.## Step 3Therefore, the faster car has 9 times the kinetic energy of the slower car.