- #1
gummybeargirl
- 22
- 0
Homework Statement
In the figure, M2 has more mass than M1 and M1 has more mass than M3. The questions refer to the magnitudes of tensions and weights.
There is friction between the horizontal plane and M2 (μk ≠ 0). M2 is observed to travel at a constant speed. Assume that the pulleys are frictionless and have negligible mass. Select the appropriate statements to complete the following sentences.
Each has the option of True/False/Greater than/Less than/Equal To
1) The magnitude of the net force on M2 is T2 - T3.
2) T1 is ... M1g.
3) T4 is ... M3g
4) T2 is ... T1.
5) M1 accelerates downwards.
6) T3 is ... T2.
2. The attempt at a solution
1) False (friction is playing a role so it has to have a lower magnitude than just T2-T3)
2) Less than (I am making the assumption it will move towards the heavier mass, so it will
have a lower tension to lower the mass)
3) Greater than (it must have a greater tension to raise the mass)
4) Equal to (the tensions will have the same magnitude in opposite directions)
5) There would be no acceleration since it travels at a constant speed)
6) Less than (since it would move towards T2 it would have a greater magnitude for T2 than
T3)
I am not sure where i am going wrong with my thought process.