A student, starting from rest, slides down a water slide. On the way down, a
frictional force (a nonconservative force) acts on her. The student has a mass of
and the height of the water slide is 11.8 m. If the kinetic frictional force does - 6.
of work, how fast is the student going at the bottom of the slide? (a) 5.3 m/s. (b)
(c) 2.6 m/s. (d) 17.3 m/s. (e) 8.6 m/s.
Pe = m g h = m * 9.81 * 11.8 (that is one high slide !)
energy lost to friction = 6 Joules
so
Ke at bottom = (1/2) m v^2 = (m * 9.81 * 11.8) Joules - 6 Joules
you forgot to type m