In the figure, M2 has more mass than M1 and M1 has more mass than M3. The questi

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. M2 T2 T3 T1 T4 M1 M3 There is friction between the horizontal plane and M2 (uk 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 M1g is.. T1- True False The magnitude of the net force on M2 is T2 T3 Greater than Ti is T2. Less than M3g is T4 Equal to -MI accelerates downwards. T3 is T2. Tries 0/12

Explanation / Answer

for M1

M1*g - T1 = 0

M1*g = T1

-------------------------------------

for left pulley

net torque = I*alpha = (1/2)*m*r^2*alpha

T1*r - T2*r = (1/2)*m*r^2*alpha

since pulley is mass less

T1*r - T2*r = 0

T2 = T1

-------------------------------------

for M3

Fnet = 0

T4 - M3*g = 0

T4 = M3*g

-------------------------------

for right pulley

net torque = I*alpha = (1/2)*m*r^2*alpha

T3*r - T4*r = (1/2)*m*r^2*alpha

since pulley is mass less

T3*r - T4*r = 0

T3 = T4

-------------------------------------

T4 = T3

for M2

Fnet = 0

T2 - T3 - fk = 0

T2 - T3 - uk*M2*g

T2 = T3 + uk*M2*g

M1g is equal to T1

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

T1 is Equal to T2

M3*g is equal to T4

M1 accelerates down   false

T3 is Less than T2

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