Explain how to solve :

Dear student, 
Thank you for sharing your query.Below is the solution to your query:

Assuming rod to be of 100 cm,clockwise force to be positive and rotation about its centre which is on 50 cm from either side,so the torque on rod will be
T= 30×-F + 10×F+ 10×F + 30×-F= -40 F
Hence it experiences torque.

For linear motion,
F'=F+F+ -F+ -F= 0
Hence no linear motion.
Therefore option B

I hope i have resolved your query.

Regards

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