In a four-bar mechanism, the lengths of driver crank, coupler and follower link are 150 mm, 250 mm and 300 mm respectively. The fixed link length is L0. Find the values of Lo so as to make it crank-crank mechanism.
1
Lo ≥ 200 mm
2
200 ≤ Lo ≤ 400 mm
3
Lo ≤ 100 mm
4
L0 ≥ 100 mm