Challenge Problem 1
The Law of Cosines states that for any triangle with sides of length A,
B, and C, the angle subtended by sides A and B satisfies
C 2 = A2 + B 2 2AB cos .
Prove this law using vector methods (e.g. perhaps things l
Physics 1A FINAL 1) Consider the motion of the 3 kg block on the horizontal surface when acted upon by the force F = 10 N indicated. The coefficient of friction, u^, between the block and the horizontal surface is 0.20. If the 3kg mass starts from rest, h
Midterm Exam 1
April 27, 2015
4:00 PM - 4:50 PM
READ THIS BEFORE YOU BEGIN
You are allowed to use only yourself and a writing instrument on the exam.
Print your name on the top right of your exam.
If you finish more tha