Unit: Mechanics
Year: 1996 Question#: 9
Question: the diagram shows a person exerting a 300.-newton force on the handle of the shovel that makes an angle of 60.° with the horizontal ground. The component of the 300.-newton force that acts perpendicular to the ground is approximately
(1 ) 150. N
(2 ) 260. N
(3 ) 300. N
(4 ) 350. N
What is this question really asking?
Explanation by: Dan M
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Answer 1
150. N
INCORRECT
This would be the answer you would get if the angle was 30°
The answer doesn't fit formula
sin
= Opp/Hyp sin sin60° = x/300 return to top
Answer 2
260. N
CORRECT
Using the formula
sin
= Opp/Hyp sin sin60° = x/300
sin60 = x/300 x = 260. N
return to top Answer 3
300. N
INCORRECT
The answer doesn't fit formula
sin
= Opp/Hyp sin sin60° = x/300 return to top
Answer 4
350. N
INCORRECT
The answer doesn't fit formula
sin
= Opp/Hyp sin sin60° = x/300 return to top
What's this question really asking?
What is the Force perpendicular?
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