{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# 8 46 if it starts from rest at the top of the track

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

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: center of the track to the particle makes a 45 angle, as shown. m '1. L~ nGU~ ~44 P<obrem.~ ~lution endulum consisting of a mass m on a string of h ,f is pulled back so the string is horizontal, ~hownin Fig. 8-45. The pendulum is then ~ed. Find (a) the speed of the mass and the magnitude of string tension when the 'makes a 45 angle with the horizontal. oil :'~~sume that the mechanical energy of the ;tmi mass is conserved (neglect possible losses), ~t this consists of kinetic and gravitational )alenergy. At point 1 where the mass is iUl = mgYI and Kl = 0, while after a 45 In FIGURE 8-46 Problem 70. : Solution The forces, initial conditions, and trajectory of the particle in this problem are completely analogous to those in the previous problem, as can be seen from a comparison of Figures 8-45 and 46. The answers are also analogous, with N replacing T and R replacing . Problem 71. A particle slides back and forth in a frictionless bowl whose height is given by h(x) = 0.18x2, where x and hare both in meters. If the particle's maximum speed...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online