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 0.65 m (see below). The spring constant is 625 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.) A 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

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 0.65 m (see below). The spring constant is 625 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.) A 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

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

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 0.65 m (see below). The spring constant is 625 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.)
A
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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