Suppose a slide similar to Der Stuka is 38.8 meters high, but is a straight slope, inclined at 45° with respect to the horizontal.

(a) Find the speed of a 56.4 kg thrill seeker at the bottom of the slide, assuming no friction.

____

(b) If the thrill seeker has a speed of 24.6 m/s at the bottom, find the change in mechanical energy due to friction.

____J

(c) Find the magnitude of the force of friction, assumed constant.

____N

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