A 5.7kg box is on a frictionless 44° slope and is connected via a massless string over a massless, frictionless pulley to a hanging 1.7kg weight
a. What is the tension in the string if the 5.7kg box is held in place, so that it cannot move?
b. If the box is then released, which way will it move on the slope?
c. What is the tension in the string once the box begins to move?