Two perfectly matched athletes on level ground are pulling opposite ends of a rope in a tug of war. the rope is not moving or accelerating. each athlete can pull with a force of 200 pounds. the system of interest is defined as the athlete holding the east end of the rope, (but not the rope itself or the ground, etc). the net force on the system )200 pounds.b)0 pounds.c)400 pounds.
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Ответ:
B. 0
Explanation:
We have two opposite forces in x, direction. Both with equal magnitude.
If we made summatory in X, we have,
Therefore the net force on the system is 0 ponds.
Ответ:
Explanation: The acceleration of a velocity-time graph is the slope of the line.
The slope of a line is rise over run. In this line, the rise is 4 units and the run is 1 unit. 4/1=4.