Today we went straight into a worksheet that Ms K walked us through called the Transparency worksheet. As we worked through it, we learned how to find and use forces on an incline plane. For the sheet, see Ms K!
After that, we went back into our Dynamics Unit booklet and did the example question on page 7.
Problem
A 475 N trunk is resting on a plane inclined 40.0° above the horizontal. Find the components of weight force parallel and perpendicular to the plant.
To solve inclined plane problem, you could start by drawing a diagram and or a free-body diagram
(image not drawn to scale)
Firstly, we know Fg = 475N and angle FgFgy = 40°
To find Fgx, we multiply sin40° by 475N
Fgx = sin40°(475N) = 305N
To find Fgy, we multiply cos40° by 475N
Fgy = cos40°(475N) = 364N
And the answer is Fgx = 305N, Fgy = 364N
After Ms K went over this example question, she assigned practice problems in the booklet which are on page 18. The answers to these questions are in the back. She also assigned a worksheet called Equilibrium Problems. If you don't have it, see her as soon as possible tomorrow. Both of these assignments are to be done for tomorrow.
No comments:
Post a Comment