A 1000 kg container is pushed by a small truck across a flat concrete surface. U

Question

A 1000 kg container is pushed by a small truck across a flat concrete surface. Us is 0.4 and Uk is 0.2 . The minimum force need to start moving is how man N? The normal force is ? Maintaining the same force the container begins to move, it's will accelerate at how many m/s^2 A 1000 kg container is pushed by a small truck across a flat concrete surface. Us is 0.4 and Uk is 0.2 . The minimum force need to start moving is how man N? The normal force is ? Maintaining the same force the container begins to move, it's will accelerate at how many m/s^2

Explanation / Answer

The minimum force need to start moving = usN

                                                                   = us * mg

   = 0.4 * 1000 * 9.8

                                                                   = 3920 N

The normal force is   =   mg

                                 =   1000 * 9.8 = 9800 N

it's will accelerate at   =   (9800 - 0.2 * 1000 * 9.8)/1000

                                  = 7.84 m/sec2

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