Review. In 1887 in Bridgeport, Connecticut, C. J.Belknap built the water slide shown in

Chapter 8, Problem 77

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Review. In 1887 in Bridgeport, Connecticut, C. J.Belknap built the water slide shown in Figure P8.77. Arider on a small sled, of total mass 80.0 kg, pushed offto start at the top of the slide (point A) with a speedof 2.50 m/s. The chute was 9.76 m high at the top and54.3 m long. Along its length, 725 small wheels madefriction negligible. Upon leaving the chute horizontallyat its bottom end (point C), the rider skimmedacross the water of Long Island Sound for as muchas 50 m, skipping along like a flat pebble, before atlast coming to rest and swimming ashore, pulling hissled after him. (a) Find the speed of the sled and riderat point C. (b) Model the force of water friction as aconstant retarding force acting on a particle. Find themagnitude of the friction force the water exerts onthe sled. (c) Find the magnitude of the force the chuteexerts on the sled at point B. (d) At point C, the chuteis horizontal but curving in the vertical plane. Assumeits radius of curvature is 20.0 m. Find the force thechute exerts on the sled at point C.