Answered: A cube, whose mass is 0.720 kg, is…

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 cube, whose mass is 0.720 kg, is attached to a spring with a force constant of 110 N/m. The cube rests upon a frictionless, horizontal surface (shown in the figure below).

A cube labeled m is attached to the right end of a horizontal spring, and the left end of the spring is attached to a wall. The spring is stretched horizontally such that the cube is displaced by a distance A to the right of its equilibrium position.

The cube is pulled to the right a distance A = 0.140 m from its equilibrium position (the vertical dashed line) and held motionless. The cube is then released from rest.

(a)

At the instant of release, what is the magnitude of the spring force (in N) acting upon the cube?

(b)

At that very instant, what is the magnitude of the cube's acceleration (in m/s²)?

m/s²

(c)

In what direction does the acceleration vector point at the instant of release?

Away from the equilibrium position (i.e., to the right in the figure). Toward the equilibrium position (i.e., to the left in the figure). The direction is not defined (i.e., the acceleration is zero). You cannot tell without more information.

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