static equilibrium problems

M m n m m n kg kg ms ms m m n p12 find

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: m m " $ N " kg # kg m/s m/s m !m N P12. Find the tension in the two wires supporting the traffic light shown in Fig. 9-46. Solution: % % % & 2 & cos "'° sin "'° & cos "° sin "° cos "'° cos "° sin "'° 8 3 cos "'° cos "° sin "° N N P18. Approximately what magnitude force, F , must the extensor muscle in the upper arm exert on the lower arm to hold a 7-3 kg shot put. Assume the lower arm has a mass of 2.8 kg and its CG is 12 cm from the elbow-joint pivot. Solution: ()* + m N P20. Calculate the force required of the "deltoid" muscle, F , to hold up the outstretched arm shown in Fig. 12-64. The total mass of the arm is 3.3 kg. Calculate the magnit...
View Full Document

This document was uploaded on 03/18/2014 for the course PHYS 116 at UNC.

Ask a homework question - tutors are online