JAMB Physics 2012 Objective — Question 3
Question 3 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2012 Objective paper, with the correct answer and a full explanation.
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A load is pulled at a uniform speed along a horizontal floor by a rope at 45° to the floor. If the force in the rope is 1500N, what is the frictional force on the load?
- A. 1524N
- B. 1350N
- C. 1260N
- D. 1061NCorrect
Explanation
Since the load moves at uniform speed, the horizontal component of the rope's force balances friction: F = 1500cos45° ≈ 1061N.
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