Physics Force & Laws Of Motion Level: Misc Level

A child whose weight is 287 N slides down a 6.6 m playground slide that makes an angle of 41% with the horizontal.The coefficient of kinetic friction between slide and child is 0.086.(a) How much energy is transferred to thermal energy? (b) If she starts at the top with a speed of 0.568 m/s, what is her speed at the bottom?