Problemas
If the 0.3 kg marble was moving at 6m/s at the bottom of the ramp . how much kinetic energy did the marble have? (KE=1/2mv^2 1.8 J 3J 5.4 J 6J
Roztwór
Mario
maestro · Tutor durante 5 años
4.3
(332 Votos)
Respuesta
To calculate the kinetic energy of the marble, we can use the formula:
where:-
is the kinetic energy,-
is the mass of the marble,-
is the velocity of the marble.Given:-
-
Now, plug these values into the formula:
First, calculate \( (6 \, \text{m/s})^2 \):
Next, multiply by the mass and the factor of
:
Therefore, the kinetic energy of the marble is
.So, the correct answer is: