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ABCD is a four bar mechanism in which AB = 310...

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Theory of Machine
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ABCD is a four bar mechanism in which AB = 310 mm and CD = 450 mm. AB and CD are both perpendicular to the fixed link AD, as shown in the below figure. If the velocity of B at this condition is v. Then the velocity of C is
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Answer & Solution
Correct Answer: Option C
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3 Comments
Navin Kumar
Navin Kumar 5 years ago
For Crank and Rocker mechanism
If crank and Rocker are perpendicular to fixed link
Vb=Vc
Hence option (a) will be correct.
Vinay Singh
Vinay Singh 6 years ago
all options are wrong in this. Since crank and rocker are parallel to each other the coupler angular velocity becomes zero. So, Vb=Vc.
Madhavan Palmani
Madhavan Palmani 7 years ago
Vc/Vb = CD/AB.

= 450/310 AB distance is 300 it will perfectly come.

= 1.46 ~ 1.5.
= 1.5 = 3/2.

Vc = Vb*3/2.

= 3/2 Vb.
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