DEPTH KNOWLEDGE MECHANICS

AXIAL VECTOR:
Those vectors related with rotation or responsible for rotation.Example angular momentum,angular velocity etc.
POLAR VECTOR:
Those vector related with translation or responsible for translation .Example force,displacement,velocity etc.

• A vector must be changed if we change its magnitude ,direction or both .
• A vector is not changed if it is slide parallel and due to change of co-ordinate x-axis.

Q} A vector is not changed if
ans: slides parellely.
ADDITION OF TWO VECTORS:

• Resultant of any two vectors lies along major diagonal when the angle between both vector less than 90 degree.
• Resultant lies along minor diagonal when the Angle between both vector is obtuse.
• Minimum number of unequal vectors lying on same plane required to make R=0 is 3.
• Minimum number of unequal vectors not lying on same plane required to make R=0 is 4.