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The following problem is an example of one of the problem types randomly selected at Newton's Third Law
A 6.7 kg box sits on a ramp inclined at 37.4o to horizontal.
What is the normal force on the ramp from the box?
Suggestions / Method Hints: - draw a free body diagram
- break the weight of the box up into components along and perpendicular to the ramp
- the normal force is the component perpendicular to the ramp
- I've used a negative sign, but conventions may vary so know what your
teacher expects. The important thing is that it is clear which direction
you believe the force to be pointing, making reference to the free body diagram is a
good idea as it removes ambiguity.
Answer: -52.16 N List of Problem Hints
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