Vectors, one shot with formulas., Summaries of Physics

Download Vectors, one shot with formulas. and more Summaries Physics in PDF only on Docsity!

VECTOR J Ratio (magnitude only) Ex. refractive index TYPES OF VECTOR Physical Quantities | J Scalar (magnitude & unit) Ex. mass, charge, current (i) zero vector | A |=0 + (ii) proper vector | A | #0 (ili) like vector (iv) unlike vector (v) equal vector — same direction and same sense — not same sense 1 Vector (magnitude, unit & direction) Ex. velocity, displacement — same magnitude, same direction and same sense (vi) negative vector > same magnitude but opposite direction (vii) unit vector Note — > A= mt |x| > REPRESENTATION OF VECTOR L graphical method id 3 & - A=A,it+Ayj+A,k : _ 2) = [aranra nr? magnitude =| A| = fA,+Ay+Az Vector addition v (vector of unit magnitude) i, j and k are the unit vectors in the direction of x, y and z respec L mathematical method