Tuesday, November 3, 2015

homework and exercises - A rock connected to one end of string in circular motion gets released.. and what happens?


I know this is a basic question, but question:



A rock is connected to one end of string and is in circular motion with the center being the other end of the string. Now the string gets released at some point. How do we know the direction in which the rock is going to fly?




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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 \...