Only need question 2 answered, question 1 is for question 2.

Question 1

Two masses, 44.0kg and 66.0kg, are connected by a string draped over a frictionless, massless pulley to form an Atwood machine. When the masses are released from rest and allowed to move a distance of 1.20m, determine velocity of each mass at this location.

Question 2

The two masses and pulley from Question 1are used to create a Modified Atwood machine where the larger mass is placed on a horizontal surface where the coefficient of friction is 0.123. When the masses are released from rest and allowed to move a distance of 1.20m, determine the velocity of each mass.