Physics, 03.06.2021 01:50 lilakatedancer
Suppose you are pushing a 3 kg box with a force of 25 N (directed parallel to the ground) over a distance of 15 m. Afterward, the box (initially at rest) is traveling at a speed of 6 m/s. How much work (in Joules) did friction do in this process
Answers: 2
![\Rightarrow W+W_f=\Delta K\quad [W_f=\text{Work done by friction}]\\\\\Rightarrow 375+W_f=54\\\Rightarrow W_f=-321\ J](/tpl/images/1360/3287/19bf3.png)
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Suppose you are pushing a 3 kg box with a force of 25 N (directed parallel to the ground) over a dis...
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