(a) Define the terms scalar and vector giving one example of each. (b) A vector in a…
PHYSICS · Subjective · CBSE · Physics · Motion in a Plane · Motion in a Plane
Problem
(a) Define the terms scalar and vector giving one example of each.
(b) A vector in a plane has rectangular components Ax and Ay. Explain, without writing any formulae, the geometric reasoning that allows you to find (i) its magnitude and (ii) the angle it makes with the positive x–axis.
(c) Without performing any numerical calculation, state whether the angle made with the positive x–axis by a vector having components (−5,+12) lies between 0∘–90∘, 90∘–180∘, 180∘–270∘ or 270∘–360∘. Justify your answer briefly.