Pre-Engineering
Physics I
Coefficient
of Friction (m)-Student Design Lab
Problem: Find the
coefficient of static (µs) and kinetic friction (mk)
between the two surfaces, wood and sandpaper.
Constraints: Utilize only the TI Force Probe interfaced with CBL
and calculator, wooden friction plane with protractor, and friction block with
sandpaper on bottom surface.
Presentation: present your
findings by including the following items:
Screen Capture twice and
paste one at a time in word document (once with the static spike traced to so coordinates will show in screen and do the same for the
middle of the kinetic region). These
values in the y-direction correspond to the F needed to overcome Static and
Kinetic friction on the surface, as long as the block is pulled at a
constant velocity.
Draw the free-body diagram
with all forces acting upon it. This
photo may be snagged from Wicker Web page and the forces can be drawn directly
on it.
Show clearly step-by-step
all calculations and formulas used to solve the problem. Provide the values of Fs , ms, Fk, mk, mg,
and Fn in a table. Type this
on the word document/lab write-up. Make
this write-up very organized and professional looking. (200 points)
no incline-horizontal plane
