An object of mass 20 kg is released at point A, slides to the bottom of the 30° incline, then collides with a horizontal massless spring, compressing it a maximum distance of 0.80 m (see below). The spring constant is 325 N/m, the height of the incline is 2.0 m, and the horizontal surface is frictionles (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 2.0 m (a) What is the speed of the object (in m/s) at the bottom of the incline? m/s (b) What is the work of friction (in ) on the object while it is on the incline? (c) The spring recoils and sends the object back toward the incline. What is the speed of the object (in m/s) when it reaches the base of the incline? m/s (d) What vertical distance (in m) does it move back up the incline?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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An object of mass 20 kg is released at point A, slides to the bottom of the 30° incline, then collides with a horizontal massless spring, compressing it a maximum distance of 0.80 m (see below). The spring constant is 325 N/m, the height of the incline is 2.0 m, and the horizontal surface is frictionless.
(Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.)
2.0 m
30°
(a) What is the speed of the object (in m/s) at the bottom of the incline?
m/s
(b) What is the work of friction (in J) on the object while it is on the incline?
(c) The spring recoils and sends the object back toward the incline. What is the speed of the object (in m/s) when it reaches the base of the incline?
m/s
(d) What vertical distance (in m) does it move back up the incline?
Transcribed Image Text:An object of mass 20 kg is released at point A, slides to the bottom of the 30° incline, then collides with a horizontal massless spring, compressing it a maximum distance of 0.80 m (see below). The spring constant is 325 N/m, the height of the incline is 2.0 m, and the horizontal surface is frictionless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 2.0 m 30° (a) What is the speed of the object (in m/s) at the bottom of the incline? m/s (b) What is the work of friction (in J) on the object while it is on the incline? (c) The spring recoils and sends the object back toward the incline. What is the speed of the object (in m/s) when it reaches the base of the incline? m/s (d) What vertical distance (in m) does it move back up the incline?
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