A 75-kg snowboarder has an initial velocity of 5.0 m/s at the top of a 28° incline (Fig. 4–75). After sliding down the 110-m-long incline (on which the coefficient of kinetic friction is uk = 0.18), the snowboarder has attained a velocity v. The snowboarder then slides along a flat surface (on which uk = 0.15) and comes to rest after a distance x. Use Newton's second law to find the snowboarder's accel- eration while on the incline and while on the flat surface. Then use these accelerations to determinex. 5.0 m/s 110 m Uk = 0.18 %3D 28°/ Hk = 0.15 FIGURE 4–75 Problem 92.

A 75-kg snowboarder has an initial velocity of 5.0 m/s at the top of a 28° incline (Fig. 4–75). After sliding down the 110-m-long incline (on which the coefficient of kinetic friction is uk = 0.18), the snowboarder has attained a velocity v. The snowboarder then slides along a flat surface (on which uk = 0.15) and comes to rest after a distance x. Use Newton's second law to find the snowboarder's accel- eration while on the incline and while on the flat surface. Then use these accelerations to determinex. 5.0 m/s 110 m Uk = 0.18 %3D 28°/ Hk = 0.15 FIGURE 4–75 Problem 92.

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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Question

A 75-kg snowboarder has an initial velocity of 5.0 m/s
at the top of a 28° incline (Fig. 4–75). After sliding down
the 110-m-long incline (on which the coefficient of kinetic
friction is uk = 0.18), the snowboarder has attained a
velocity v. The snowboarder then slides along a flat surface
(on which uk = 0.15) and comes to rest after a distance x.
Use Newton's second law to find the snowboarder's accel-
eration while on the incline and while on the flat surface.
Then use these accelerations to determinex.
5.0 m/s
110 m
Uk = 0.18
%3D
28°/
Hk = 0.15
FIGURE 4–75 Problem 92.

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