Physics · Theory of Machines
The Grubler's criterion for plane mechanisms with constrained motion is given by (where l is the number of links and j is the number of binary joints):
- 13l - 2j - 1 = 0
- 23l - 2j - 4 = 0✓
- 33l - 2j - 3 = 0
- 43l - 2j - 2 = 0
Correct answer
3l - 2j - 4 = 0
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