PHY 1151
Fall 2002
First Hour Exam -- version 1
September 20, 2002
Rx = Ax + Bx + Cx
Rx = 3 + 5 + 7
Rx = 15
Ry = Ay + By + Cy
Ry = - 4 - 6 + 8
Ry = - 2
Please notice that Question 3 is very similar to "Another Example" from the notes and discussion of Projectile Motion.
First, we apply F = m a to the 5-kg mass:
To get that "more information", we apply F = m a to the 2-kg block on the inclined plane:
a = 6.04 m/s2
T = 6.70 N + (2 kg)(6.04 m/s2)
T = 6.70 N + 12.08 N
T = 18.78 N
