. Add the following three force vectors, indicating your results by filling in the blanks for the x and y components for each, and expressing the resultant (the sum) in both rectangular and polar forms. Then write down the equilibrant for these two force vectors. Show your work here. These forces and angles are used in the lab report as well so keep a copy of your work.
Fi-4.50 N 0
F: 2.50 N @40°-
F 3.00 N a 135°-
R=F1 + F2 + F3 = X + X + .
Magnitude of R Angle w/r to +x direction
Equilibrant--R X +

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.