Shown below is a waterslide constructed in the late 1800's. This slide was unique for its time due to the fact that a large number of small wheels along its length made friction negligible. Riders rode a small sled down the chute which ended with a horizontal section that caused the sled and rider to skim across the water much like a flat pebble. The chute was 9.76 m high at the top and 54.3 m long. Consider a rider and sled with a combined mass of 82.5 kg. They are pushed off the top of the slide from point A with a speed of 2.20 m/s, and they skim horizontally across the water a distance of 50 m before coming to rest. (a) \20.0 m 9.76 m -54.3 m 50.0 m (b) (a) Find the speed (in m/s) of the sled and rider at point C. 14.01 m/s (b) Model the force of water friction as a constant retarding force acting on a particle. Find the magnitude (in N) of the friction force the water exerts on the sled. 161.97 (c) Find the magnitude (in N) of the force the chute exerts on the sled at point B. 796.2 (d) At point C the chute is horizontal but curving in the vertical plane. Assume its radius of curvature is 20.0 m. Find the force (in N) the chute exerts on the sled at point C. magnitude direction

Shown below is a waterslide constructed in the late 1800's. This slide was unique for its time due to the fact that a large number of small wheels along its length made friction negligible. Riders rode a small sled down the chute which ended with a horizontal section that caused the sled and rider to skim across the water much like a flat pebble. The chute was 9.76 m high at the top and 54.3 m long. Consider a rider and sled with a combined mass of 82.5 kg. They are pushed off the top of the slide from point A with a speed of 2.20 m/s, and they skim horizontally across the water a distance of 50 m before coming to rest. (a) \20.0 m 9.76 m -54.3 m 50.0 m (b) (a) Find the speed (in m/s) of the sled and rider at point C. 14.01 m/s (b) Model the force of water friction as a constant retarding force acting on a particle. Find the magnitude (in N) of the friction force the water exerts on the sled. 161.97 (c) Find the magnitude (in N) of the force the chute exerts on the sled at point B. 796.2 (d) At point C the chute is horizontal but curving in the vertical plane. Assume its radius of curvature is 20.0 m. Find the force (in N) the chute exerts on the sled at point C. magnitude direction

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

Shown below is a waterslide constructed in the late 1800's. This slide was unique for its time due to the fact that a large number of small wheels along its length made friction negligible. Riders rode a small sled down the chute which ended with
a horizontal section that caused the sled and rider to skim across the water much like a flat pebble. The chute was 9.76 m high at the top and 54.3 m long. Consider a rider and sled with a combined mass of 82.5 kg. They are pushed off the top
of the slide from point A with a speed of 2.20 m/s, and they skim horizontally across the water a distance of 50 m before coming to rest.
(a)
20.0 m
B
9.76 m
-54.3 m-
50.0 m
(b)
(a) Find the speed (in m/s) of the sled and rider at point C.
14.01
m/s
(b) Model the force of water friction as a constant retarding force acting on a particle. Find the magnitude (in N) of the friction force the water exerts on the sled.
161.97
N
(c) Find the magnitude (in N) of the force the chute exerts on the sled at point B.
796.2
(d) At point C the chute is horizontal but curving in the vertical plane. Assume its radius of curvature is 20.0 m. Find the force (in N) the chute exerts on the sled at point C.
magnitude
direction
up
Engraving from Sciantific American July 1888

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