Unit: Mechanics
Year: 1992 Question#: 51
Question:
As angle
between the lawnmower handle and the horizontal increases, the horizontal component
of F(1 ) decreases
(2 ) increases
(3 ) stays the same
What is this question really asking?
Explanation by: Jay D (no last names)
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Answer 1
The horizontal component of F decreases
CORRECT
This is correct because as the handle(F) becomes more vertical, the angle increases and the horizontal force(Fh) decreases. (see diagram)
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Answer 2
The horizontal component of F increases
INCORRECT
This is incorrect because as the angle increases the horizontal force decreases.
Consult the diagrams
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The horizontal component of F remains the same.
INCORRECT
This is incorrect consult the following diagrams.
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What's this question really asking?
This question is really asking, if you had an angle theta and there was a horizontal force involved what would happen to the the horizontal force if theta was increased.
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