A Meter Stick on a Horizontal Frictionless Table Top Is

question 49

Multiple Choice

A meter stick on a horizontal frictionless table top is pivoted at the 80-cm mark. A force is applied perpendicularly to the end of the stick at 0 cm, as shown. A second force (not shown) is applied perpendicularly at the 60-cm mark. The forces are horizontal. If the stick does not move, the force exerted by the pivot on the stick:

• A) must be zero
• B) must be in the same direction as and have magnitude
• C) must be directed opposite to and have magnitude
• D) must be in the same direction as and have magnitude
• E) must be directed opposite to and have magnitude

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