A Block of Mass 0

question 64

Multiple Choice

A block of mass 0.50 kg is on a table and attached to a block of mass 0.25 kg by a taut,massless string.The 0.25-kg block hangs by means of the string,which goes over a pulley.The 0.25-kg block is released,and it descends from rest at a constant acceleration,travelling 1.00 m in 1.25 s.What is the coefficient of kinetic friction between the table and the 0.50-kg block?

• A)0.30
• B)0.47
• C)0.53
• D)0.80

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