Problemas
A bow is drawn so that it has 40 J of potential energy. When released, the arrow will theoretically have a kinetic energy that Less than 40J It is impossible to predict More than 40J 40J
Roztwór
Camila
professionell · Tutor durante 6 años
3.9
(228 Votos)
Respuesta
The kinetic energy of the arrow when it is released will be 40 J.
Explicación
## Step 1The problem involves the principle of conservation of energy. This principle states that energy cannot be created or destroyed, only transformed from to another.## Step 2In this case, the bow is drawn and has 40 J of potential energy. When the bow is released, the potential energy is converted into kinetic energy.## Step 3Since there are no other forces acting on the system (like friction or air resistance), all of the potential energy will be converted into kinetic energy.## Step 4Therefore, the kinetic energy of the arrow when it is released will be equal to the potential energy of the bow when it was drawn, which is 40 J.