Phy231
Your 'cq_1_19.3' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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An object moving in the direction 120 degrees (as measured counterclockwise to the positive x axis) encounters a net force
whose direction is 270 degrees. Sketch the force and its component along the line of motion, as well as its component
perpendicular to the line of motion.
answer/question/discussion: ->->->->->->->->->->->-> :
#$&*
Suppose you are facing in the direction of motion. Do you perceive the component of the force along the line of motion to
be forward or backward? It this component in the direction of motion or opposite to the direction of motion?
answer/question/discussion: ->->->->->->->->->->->-> :
backward, opposite
#$&*
Will the object speed up, slow down or maintain a constant speed?
answer/question/discussion: ->->->->->->->->->->->-> :
slow down
#$&*
If you are facing in the direction of motion, then the line perpendicular to the direction of motion will run to your right
and to your left. Is the component of the force perpendicular to the line of motion directed to the right or to the left?
answer/question/discussion: ->->->->->->->->->->->-> :
hits the right side
#$&*
Will the object veer to the right, to the left or maintain straight-line motion?
answer/question/discussion: ->->->->->->->->->->->-> :
left to keep straight
#$&*
Which is greater in magnitude, the component of the force along the line of motion or the component perpendicular to the
line of motion?
answer/question/discussion: ->->->->->->->->->->->-> :
I'm not sure how to tell which one has a greater magnitude... don't I need more information to figure that out??
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10min
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5/14/10 2pm
It appears that you understand, but read through the discussion to be sure of all the details.
&#Please compare your solutions with the expanded discussion at the link
Solution
Self-critique your solutions, if this is necessary, according to the usual criteria. Insert any revisions, questions, etc. into a copy of this posted document. Mark any insertions with &&&& so they can be easily identified. &#