Wednesday, June 29, 2016

Unit vector in displacement


When we use vectors in physics why does the unit vector (for displacement) equals magnitude of 1 or magnitude of 1m?




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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 \...