734_Dynamics 11ed Manual

734_Dynamics 11ed Manual - Engineering Mechanics Dynamics...

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: Engineering Mechanics - Dynamics Chapter 21 ⎛ 0 ⎞ ⎛ ωx ⎞ ⎛ c ⎞ ⎛ vB ⎞ ⎜ ⎟⎜ ⎟⎜⎟⎜⎟ ⎜ 0 ⎟ + ⎜ ωy ⎟ × ⎜ b ⎟ = ⎜ 0 ⎟ ⎜ −vA ⎟ ⎜ ω ⎟ ⎝ −a ⎠ ⎜ 0 ⎟ ⎝ ⎠ ⎝ z⎠ ⎝⎠ Given ⎛ ωx ⎞ ⎛ c ⎞ ⎜ ⎟⎜ ⎟ ft ⎜ ωy ⎟ ⎜ b ⎟ = 0 s ⎜ ω ⎟ ⎝ −a ⎠ ⎝ z⎠ ⎛ vB ⎞ ⎜⎟ ⎜ ωx ⎟ ⎜ ⎟ = Find ( vB , ωx , ωy , ωz) ⎜ ωy ⎟ ⎜ ωz ⎟ ⎝⎠ ⎛ ωx ⎞ ⎜⎟ ω = ⎜ ωy ⎟ ⎜ω ⎟ ⎝ z⎠ vG ⎛ 0.98 ⎞ rad ω = ⎜ −1.06 ⎟ ⎜ ⎟s ⎝ −1.47 ⎠ vB = 12.00 ft s ⎛c⎞ ⎜2⎟ 0⎞ ⎜⎟ ⎛ ⎜ ⎟ b⎟ = ⎜ 0 ⎟ +ω×⎜ ⎜2⎟ ⎜ −vA ⎟ ⎝ ⎠ ⎜ −a ⎟ ⎜⎟ ⎝2⎠ T1 = 1⎛ W⎞ ⎜ 2⎝ g ⎟ ( vG⋅ vG) + ⎠ In position 2 the center of mass has fallen a distance d/2 2⎞ ⎜ ⎟ ( ω⋅ ω) ⎜⎟ 2 ⎝ g ⎠ ⎝ 12 ⎠ 1 ⎛ W ⎞⎛ L T1 = 6.46 lb⋅ ft T1 + 0 = T2 − W ⎛ ⎜ d⎞ ⎟ ⎝ 2⎠ T2 = T1 + W ⎛ ⎜ d⎞ ⎟ ⎝ 2⎠ T2 = 15.5 lb⋅ ft Problem 21-26 The rod AB of mass MAB is attached to the collar of mass MA at A and a link BC of mass MBC using ball-and-socket joints. If the rod is released from rest in the position shown, determine the angular velocity of the link after it has rotated 180° . Given: MAB = 4 kg MA = 1 kg 732 ...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online