The light rod is pivoted at O and carries the 5- and 10-lb particles. If the rod is released from rest at 0 = 60° and swings in the vertical plane, calculate (a) the velocity v of the 5-lb particle just before it hits the spring in the dashed position and (b) the maximum compression x of the spring. Assume that x is small so that the position of the rod when the spring is compressed is essentially horizontal.

The light rod is pivoted at O and carries the 5- and 10-lb particles. If the rod is released from rest at 0 = 60° and swings in the vertical plane, calculate (a) the velocity v of the 5-lb particle just before it hits the spring in the dashed position and (b) the maximum compression x of the spring. Assume that x is small so that the position of the rod when the spring is compressed is essentially horizontal.

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

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest. 

Question

149 The light rod is pivoted at O and carries the 5- and
10-lb particles. If the rod is released from rest at
0 = 60° and swings in the vertical plane, calculate
(a) the velocity v of the 5-lb particle just before it
hits the spring in the dashed position and (b) the
maximum compression x of the spring. Assume
that x is small so that the position of the rod when
the spring is compressed is essentially horizontal.
10 lb
12"
k = 200 lb/in.
18"
5 lb

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