--- loncom/homework/templates/functionplotvector.problem 2011/11/26 02:12:45 1.1
+++ loncom/homework/templates/functionplotvector.problem 2012/02/29 01:24:50 1.3
@@ -6,24 +6,27 @@ $massy=2.1+$slope*$massx;
$angle=180.*atan($slope)/$pi;
$perp=$angle+90.;
-A mass is sliding down the indicated incline with a constant velocity. Construct the free body diagram, making sure the forces are approximately proportionally correct. Leave unused vectors unattached.
+A mass is sliding down the indicated incline with a constant velocity. Construct the free body diagram, making sure the forces are approximately proportionally correct. Leave unused vectors unattached.
+You can use the red-colored vector sum tool to help you construct your diagram; check the boxes for the vectors you want included in the sum. The tool is just there to help you, its settings are not graded.
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@@ -36,6 +39,10 @@ A mass is sliding down the indicated inc
What should be the net force on the mass?
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+ What should be the direction of the normal force?
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