A student of mass 55.4 kg, starting at rest, slides down a slide 15.2 m long, tilted at an angle of 26.1 with respect to the horizontal. If the coefficient of kinetic friction between the student and the slide is 0.118, find the force of kinetic friction, the acceleration, and the speed she is traveling when she reaches the bottom of the slide. (Enter the magnitudes.)

a)the force of kinetic friction (in N) N

(b)the acceleration (in m/s²) m/s²

(c)the speed she is traveling (in m/s) m/s