Different kinds of Friction
No Friction Static Friction Sliding Friction Rolling Friction
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Physics, 21.09.2020 02:01 andrealch13p3w89f
Different kinds of Friction
No Friction Static Friction Sliding Friction Rolling Friction
Weight of
Ideal Force
Force Needed Force Needed to Force Needed to
Needed to Push
Object
to Start Moving Keep Moving Keep Rolling
Up Ramp
480N
160 N
192 N
178 N
166 N
900 N
300 N
360 N
333 N
310 N
750 N 250 N
300 N
278 N
Copyright Glencoe/McGw-Hill, a division of The McGraw-Hill Companie
259 N
3. A ramp is 3 meters long and 1 meter high. Under ideal conditions, this ramp would reduce the
force needed to raise an object by a factor of three. However, friction is a force that opposes
motion between two surfaces that are touching. According to the chart, which kind of friction
opposes motion with the greatest force?
a. No friction
b. Static friction
c. Sliding friction
d. Rolling friction
Answers: 1
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