- #1
idllotsaroms
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Homework Statement
http://postimage.org/image/530mgjivr/
How come the solution states: (20)(9.8)(0.7cos30 - sin 30) isn't sin30 going in the positive direction? shouldn't the solution be Sin30 - .7cos30? Also, when solving these types of problems should I leave the mg part outside of the cos and sin area? Cause I got
"F = 196sin30° - (.7 * 196cos30)"
Homework Equations
Newtons second law
Fnet = ma
The Attempt at a Solution
N = 193cos30
F = 196sin30° - (.7 * 196cos30)