# physics

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A string is tied to a 4.4 kg block and a 120 g bucket from a pulley. Students add 20 g washers one at a time to the bucket. the students are unaware that the coefficient of static friction for the block on the table is 0.42.
a) what is the maximum force of static friction for the block?
b) how many washers can the students add to the bucket without moving the block.

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