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When released from rest, a 180 g block slides down the path shown below, reaching the bottom with a speed of 4.2 m/s. How much work does the force of friction do (in J)? J

When released from rest, a 180 g block slides down the path shown below, reaching the bottom with a speed of 4.2 m/s. How much work does the force of friction do (in J)? J

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When released from rest, a 180 g block slides down the path shown below, reaching the bottom with a speed of 4.2 m / s . How much work does the force of friction do (in J)? ◻ J

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