Problemas
5. An object has a kinetic energy of 14 J and a mass of 17 kg, how fast is the object moving?
Roztwór
Gonzalo
professionell · Tutor durante 6 años
4.6
(259 Votos)
Respuesta
To find the speed of the object, we can use the formula for kinetic energy:
where:-
is the kinetic energy,-
is the mass,-
is the velocity.Given:-
-
We need to solve for
:
First, multiply both sides by 2 to get rid of the fraction:
Next, divide both sides by 17:
Finally, take the square root of both sides to solve for
:
So, the object is moving at approximately
.