JAMB Physics 2014 Objective — Question 10
Question 10 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2014 Objective paper, with the correct answer and a full explanation.
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One of the conditions necessary for an object to be in equilibrium when acted upon by a number of parallel forces is that the vector sum of the forces is
- A. zeroCorrect
- B. negative
- C. positive
- D. average
Explanation
For equilibrium under parallel forces, the vector sum of the forces must be zero, and the total clockwise moment about a point must equal the total anticlockwise moment about the same point.
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