A kid whose weight is 248 Newton slides down a 5.0 meter play ground slide that makes an angle of 20 degree with the horizontal. The coefficient of kinetic friction is 0.10.
(a) Find how much energy is transferred to the thermal energy?
J
(b) If she starts at the top with a speed of 4.80 m/s, determine what is her speed at the bottom?
m/s