Home >All Categories > Science & Mathematics >Physics >Open Question Britney Member since:February 23, 2011Total points:92 (Level 1)What are the conditions of a body which is acted upon by parallel co-planar forces?Answer Question

by dev Member since:December 25, 2010Total points:336 (Level 2)There are two conditions
(1) The vector sum of all the forces acting on the object must be zero.
Mathematically,?F vector=0. This condition ensures that the object remains at a
particular location and does not moving linearly (unless it is already in motion
with a constant uniform velocity).
(2) The algebraic sum of the torques about any axis of the object must be zero.
Mathematically ? torque vector=0, . This condition requires that the sum of the
counterclockwise torques must be equal to the sum of the clockwise torques
about the axis of rotation. Therefore when the net torque is zero, the object
remains in rotational equilibrium. This implies that either the object does not
rotate (rotational static equilibrium) or that it rotates with a constant angular
velocity (dynamic equilibrium)

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