A $5\mathrm{.}00$ kg block is set into motion up an inclined plane with an initial speed of vi $=10\mathrm{.}0$ m$/$s$.$ The block comes to rest after traveling d $=2\mathrm{.}00$ m along the plane, which is inclined at an angle of $=30\mathrm{.}0$ to the horizontal. Use g $=9\mathrm{.}80$ m$/$s$2.$

$$ What is the change in the block$$s kinetic energy?

$$ What is the change in the potential energy of the block$-$Earth system?

$$ If the friction force is constant, what is the magnitude of the friction force?