Processing Math: Done
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing button on the jsMath control panel.

No jsMath TeX fonts found -- using image fonts instead.
These may be slow and might not print well.
Use the jsMath control panel to get additional information.
jsMath Control PanelHide this Message


jsMath

Solution 9.5

From Mechanics

(Difference between revisions)
Jump to: navigation, search
Current revision (09:56, 6 March 2011) (edit) (undo)
 
Line 1: Line 1:
-
[[Image:9.5.gif]]
+
[[Image:9.5a.gif]]
-
In the figure <math>R1</math> is the air resistance.
+
In the figure <math>F1</math> is the air resistance.
Resolving up the plane
Resolving up the plane

Current revision

Image:9.5a.gif

In the figure F1 is the air resistance.

Resolving up the plane

F1+Fmgsin20=0F1=mgsin20F=609.810.342F=201.3 NF

Resolving perpendicular to the plane upwards

Rmgcos20=0R=mgcos20=609.810.94=553 N

Using the friction equation gives

F=R=0.05553=27.65 N

Substituting in the above equation for R1 gives

F1=201.327.65173 N