Posted by Anonymous on Wednesday, January 2, 2008 at 4:12am.
1)The x and ycomponents of a velocity vector of 100 N at 240 degrees would be?
2) A man pushes a lawn mower across the lawn exerting 5 N of force along the handle at an angle of 25 degrees with the ground. What is the xcomponent of the force he exerts?

Physics  drwls, Wednesday, January 2, 2008 at 7:41am
1) The answer depends upon what reference direction the 240 degrees is measured from, and whether + means couterclockwise or counterclowise. In mathematics and physics, polar direction angles are measured counterclockwise from +x. I assume you are dealing with a Force (F) vector and that is how the angle is measured.
Then the vector is in the third quadrant and
Fx = 100N cos 240 = 100N cos 60 = 50N
Fy = 100N sin 240 = 100N sin 60 = ?
2) 5N cos 25
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