in the mechanism shown the block B is constrained to move vertically and is atta
ID: 2144028 • Letter: I
Question
in the mechanism shown the block B is constrained to move vertically and is attached to a bar BD. The point A on the bar AD is fixed. Express all your answers in the component syatem shown. At the instant shown, bar AD is rotating counterclockwise at the angular speed wAD = an rad/s, thi = 43 degrees and theta = 32 degrees. If l = 21 inches and d = 20 inches
determine the velocity of the block B at this instant.
TRIED TO UPLOAD THE DIAGRAM BUT I KEEP GETTING AN ERROR MESSAGE ON CHEGG. I REALLY NEED SOME KIND OF HELP WITH THIS PROBLEM. THANKS
Please help!
Explanation / Answer
amplitude (AD) , A = 21 inches
w = isnot given
x = A*cos(w*t) (position)
v = dx/dt
v = -A*w*sin(w*t)
at wt = 32 degrees
substitute A and w values in the above equation and find v
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