Three
objects are connected on a table as shown in Figure below. The coefficient of
kinetic friction between the block of mass m 2 and the
table is 0.350. The objects have masses of m 1 =4.00kg, m 2 =1.00kg,
and m 3
=2.00kg, and the pulleys are frictionless.

(i)
Draw a free-body force diagram of each object.

(ii)
Determine the acceleration of each object, including its direction.

(iii)
Determine the tensions in the two cords.

(iv)
If the tabletop were smooth, would the tensions increase, decrease, or remain the
same? Explain.

Question

Three
objects are connected on a table as shown in Figure below. The coefficient of
kinetic friction between the block of mass  m 2  and the
table is 0.350. The objects have masses of  m 1  =4.00kg,  m 2  =1.00kg,
and  m 3
 =2.00kg, and the pulleys are frictionless.

(i)
Draw a free-body force diagram of each object.

(ii)
Determine the acceleration of each object, including its direction.

(iii)
Determine the tensions in the two cords.

(iv)
If the tabletop were smooth, would the tensions increase, decrease, or remain the
same? Explain.

Answer

ANSWER: (i)  
 (ii) 2.31 m/s 2  Down for m 1 , left for m 2 , and up for m 3  
 (iii) T 12 =30.0 N and T 23 =24.2 N (iv) T 12  decreases, T 23  increases

Answer

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Three objects are connected on a table as shown in Figure below. The coefficien...

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