Engineering Mechanics - DynamicsChapter 13instant.The boy has a weight W. Neglect his size and the mass of the seat and cords.Given:W60 lb=θ160 deg=l10 ft=vG15fts=g32.2fts2=Solution:Wcos1()Wg⎛⎝⎞⎠at=atgcos1=at16.1fts2=2TWsin1−Wgv2l⎛⎜⎝⎞⎟⎠=T12WgvG2l⎛⎜⎝⎞⎟⎠Wsin1+⎡⎢⎣⎤⎥⎦=T46.9 lb=Problem 13-62At the instant θ = θ1the boy’s center of mass G ismomentarily at rest. Determine his speed and the
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