Saturday, March 5, 2016

gravity - Would a light or a heavy ball roll fastest down a slope?


A small, light ball and a larger, heavier ball are released from the top of a slope.


Which will move further? which will come down faster?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...