A 12.0 kg box is given an initial push that starts it sliding across the floor. It eventually comes to a stop. If the box has an initial velocity of 3.5 m/s, how much work is done by friction to cause it to come to a stop? (Yes, you are correct, you do not know the coefficient of friction.)

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**Work Done by Friction on a 12.0 kg Box**

A 12.0 kg box is given an initial push that starts it sliding across the floor. It eventually comes to a stop. If the box has an initial velocity of 3.5 m/s, how much work is done by friction to cause it to come to a stop? (Yes, you are correct, you do not know the coefficient of friction.)

**Options:**
- ○ -74 J
- ○ -410 J
- ○ -21 J
- ○ -120 J
Transcribed Image Text:**Work Done by Friction on a 12.0 kg Box** A 12.0 kg box is given an initial push that starts it sliding across the floor. It eventually comes to a stop. If the box has an initial velocity of 3.5 m/s, how much work is done by friction to cause it to come to a stop? (Yes, you are correct, you do not know the coefficient of friction.) **Options:** - ○ -74 J - ○ -410 J - ○ -21 J - ○ -120 J
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