103_Dynamics 11ed Manual

103_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 12 Given: a 2f t = b 1s 1 = c 0.5 rad s = The plot t θ c = ra ( )cos b c = 0 0.01 2 π () , 2 .. = r a ( )cos b c 1 ft = 01234567 2 0 2 Angle in radians Distance in ft r ( )cos bt = r' a b sin = r'' a b 2 cos = ct = 'c = '' 0 = v r r' = a b sin = a r r'' r ' 2 = a b 2 c 2 + cos = v r ' = ac cos = a r '' 2 r' ' + = 2 abc sin = Problem 12-141 If a particle’s position is described by the polar coordinates r = a sin b θ and = ct , determine the radial and tangential components of its velocity and acceleration when
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