A body of weight W N rest on a smooth plane inclined at an angle\(\theta\)...
PHYSICS
JAMB 1991
A body of weight W N rest on a smooth plane inclined at an angle\(\theta\)o to the horizontal. What is the resolved part of the weight in Newtons along the plane?
- A. W sin\(\theta\)
- B. W cos\(\theta\)
- C. W sec\(\theta\)
- D. W tan\(\theta\)
Correct Answer: A. W sin\(\theta\)
Explanation
horizontal component = W cos(90o - \(\theta\))
= W sin
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