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
4.3
(244 Votos)
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.