Force: friction and grip; pickup tows truck (ford F150)

Small truck pulls large one out of the snow. Takes a lot of time to set the mass of both trucks into motion. First the wheels are spinning because of lack of grip (friction). Check out the rotation of the wheels! At a point they seem to rotate backwards. Also you can see that where at first the trucks move very slowly they will start accelerating to reach a higher speed.

Safe Journey guys!


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