For the block sliding down the ramp, the work done by friction (a negative number) can also be calculated with conservation of energy. Which equation uses conservation of energy? O Wricion -Fricton " d O Wriction = AKE +AGPE O -uN d= u mg cos 0 d O Wriction= mgh d) The model we will use in this lab is from Fnet = ma and assumes the only forces along the ramp are friction and mg sin(0) (the component of weight parallel to the ramp). The model assumes a constant friction force and constant acceleration. With this model, which of the following expressions is true for friction? Of W.-mg cos(0) Of- mg sin(e) - ma O1- mg - W. Of- uN - W,
For the block sliding down the ramp, the work done by friction (a negative number) can also be calculated with conservation of energy. Which equation uses conservation of energy? O Wricion -Fricton " d O Wriction = AKE +AGPE O -uN d= u mg cos 0 d O Wriction= mgh d) The model we will use in this lab is from Fnet = ma and assumes the only forces along the ramp are friction and mg sin(0) (the component of weight parallel to the ramp). The model assumes a constant friction force and constant acceleration. With this model, which of the following expressions is true for friction? Of W.-mg cos(0) Of- mg sin(e) - ma O1- mg - W. Of- uN - W,
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Transcribed Image Text:For the block sliding down the ramp, the work done by friction (a negative number) can also be
calculated with conservation of energy. Which equation uses conservation of energy?
O Wriction -Friction " d
O Wriction AKE +AGPE
O -uN "d= -u mg cos 0 * d
O Wiriction = mgh
d)
The model we will use in this lab is from Fnet = ma and assumes the only forces along the ramp are
friction and mg sin(0) (the component of weight parallel to the ramp). The model assumes a constant
friction force and constant acceleration.
With this model, which of the following expressions is true for friction?
Of-W, -mg cos(0)
Of- mg sin(e) - ma
Of- mg - W,
Of- uN- W,
Transcribed Image Text:Which dotted lines best represent the breakdown of the weight, mg, into the components parallel
and perpendicular to the surface?
A
B.
C
E
mg
mg
mg
mg
mg
O A
OD
OE
b)
What is the equation for the component of weight parallel to the ramp (W,)?
O W, - W cos(e) = mg cos(e)
O W, - W sin(e) = mg sin(e)
O W, - W sin(e) -f
O W, -f-W sin(0)
B.
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