A student, starting from rest, slides down a water slide. on the way down, a kinetic frictional force (a nonconservative force) acts on her. the student has a mass of 76 kg, and the height of the water slide is 12.8 m. if the kinetic frictional force does -7.4 × 103 j of work, how fast is the student going at the bottom of the slide?
