AP Physics C 2017

(Marvins-Underground-K-12) #1

(^1) When physicists say “normal,” they mean “perpendicular.” The word “normal” in its conventional meaning simply does not apply to
physicists.
(^2) Try solving the x -axis equation for T 1 , then plug that into the y -axis equation:
Plug in the value of cos 45°, os 30°, sin 30°, sin 45° ... and now it’s easy to solve for T 2 = 45 N.

Free download pdf