Question

While opening a tap with two fingers, the forces applied by the fingers are:

• A. equal in magnitude
• B. parallel to each other
• C. opposite in direction
• D. all the above

Answer 1

The correct option is D all the above

A couple has to be applied to the tap in order to open it. A couple is the combination of two equal and opposite parallel forces acting at different axes. Thus option D is correct.