In the figure, M 2 has more mass than M 1 and M 1 has more mass than M 3 . The q

Question

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 (?k ? 0). M2 is observed to travel at a constant speed. Assume that the pulleys are frictionless and have negligible mass. Select the appropriate statements (choices: greater than, less than, equal to, true, and false) to complete the following sentences.

T3 is ... T2.

The magnitude of the net force on M2 is T2 - T3.

T4 is ... M3g

M1 accelerates downwards.

M1g is ... T1.

T1 is ... T2.

Explanation / Answer

a) less

b) false ( force is 0 as const. velocity mean a=0)

c) equal ( as constant velocity mean a =0 , T4-m3g= 0)

d) false ( as constant velocity mean a =0 )

e) equal

f) equal

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