University:
Michigan State University
Course:
ERG 160 | Success in Science, Technology, Engineering, and Mathematics
Academic year:

2021
Views:

246

Pages:

1
Author:

crawniadxfo

COSMOS: Complete Online Solutions Manual Organization System Chapter 3, Solution 71. (a) Have M = ΣFd ( ) = ( 9 lb )(13.8 in.) − ( 2.5 lb )(15.2 in.) = ( 86.2 lb ⋅ in.) M = 86.2 lb ⋅ in. (b) Have M = Td = 86.2 lb ⋅ in. For T to be a minimum, d must be maximum. ∴ Tmin must be perpendicular to line AC. tan θ = 15.2 in. 11.4 in. θ = 53.130° or θ = 53.1° (c) Have M = Tmin d max Where M = 86.2 lb ⋅ in. d max = (15.2 in.)2 + (11.4 in.)2 + 2 (1.2 in.) = 21.4 in. ∴ 86.2 lb ⋅ in. = Tmin ( 21.4 in.) Tmin = 4.0280 lb or Tmin = 4.03 lb .

COSMOS Chapter 3 Solution 71

of 1

Description

Free up your schedule!

Take 5 seconds to unlock