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Physics, 18.12.2019 23:31, scoutrussel4life
Aloop-the-loop has a circular arc, with a marble that can run along a track and traverse the entire inside of the loop. when the marble is precisely at the top of the inside loop, it has its minimum speed. ~v what do we know about the direction of the net force on the marble at this point, the top of the loop? a. the net force is instantaneously in the direction of the marble’s velocity b. the net force is instantaneously in the opposite direction to the marble’s velocity ~v. c. the net force is vertically downward. d. the net force is vertically upward
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Aloop-the-loop has a circular arc, with a marble that can run along a track and traverse the entire...
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