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A cart of mass M1 = 3 kg is attached to a block of mass M2 = 5 kg by a string that passes over a frictionless pulley. The system is initially at rest and the table is frictionless. After the block has fallen a distance h = 1 m:
a) What is the work Wg done by gravity on the system?
b) What is the increase in kinetic energy DK of the cart-plus-block system?
c) What is the speed |v| of the cart-plus-weight system?
d) What is the work Ws done on the cart (not the block!) by the string?
e) What is the tension T in the string?
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