course phy 121
3/21 at 7:00 p.m.
Asst 19 Question 3--------------------------------------------------------------------------------
As on all forms, be sure you have your data backed up in another document, and in your lab notebook.
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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:
I have sketched this and see a 150 degree angle existing between them.
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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:
I'm assuming it is oppositie to the direction of motion.
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Will the object speed up, slow down or maintain a constant speed?
answer/question/discussion:
I believe the object will slow down.
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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:
To the left
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Will the object veer to the right, to the left or maintain straight-line motion?
answer/question/discussion:
I believe it will veer to the left.
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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:
The component perpedicular to the line of motion
#$&*
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Revised: 06 Feb 2010 17:14:13 -0500"
Well done.
The link is again optional, and there's no need for a revision.
&#Please compare your solutions with the expanded discussion at the link
Solution
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