ch08-p055 - 55. (a) The vertical forces acting on the block...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
(c) The energy that appears as kinetic energy is originally in the form of potential energy in the compressed spring. Thus, KU k x i max == 1 2 2 , where k is the spring constant and x is the compression. Thus, x K k = 2 267 640 046 .. J Nm m b g 55. (a) The vertical forces acting on the block are the normal force, upward, and the force of gravity, downward. Since the vertical component of the block's acceleration is zero, Newton's second law requires F N = mg , where m is the mass of the block. Thus f = μ k F N = k mg . The increase in thermal energy is given by
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

Ask a homework question - tutors are online