An archer provides 50 J of potential energy to her bow before release the arrow. What will be the kinetic energy of the arrow it is release from the bow?

Kinetic energy of the arrow is 50 J

Explanation:

Here we know that archer stretches the the bow and stores potential energy into the thread

Now when he releases the thread then potential energy of the thread will convert into the kinetic energy of the arrow

This verify the conservation of energy according to which energy neither be created nor be destroyed but it will convert from one form to another form

So here we have

KE = 50 J

this could be newton#'s law of cooling. the cooling curve is exponential

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.