knowledge Flashcards
1
Q
what does it mean in mechanics is a string in inextensible?
A
the tension in all parts of it is the same
2
Q
what does it mean in mechanics if an object is considered as a particle?
A
rotational forces and air resistance can be ignored and the mass of the object is concentrated at a single point
3
Q
what does it mean in mechanics if an object is considered as a rod?
A
mass in concentrated along a line
no thickness
rigid
