Monday, September 22, 2014

newtonian mechanics - Why does a change of direction imply an acceleration?


We know that it takes no energy to change the direction of a vector, we know also that it takes no energy to displace a body in motion if a push is applied exactly at a right angle on its center of mass.



Considering that, if that is true, can you explain why a simple change of direction without any increase of speed is considered an acceleration?




No comments:

Post a Comment

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 \...