A particle in the –plane has instantaneous velocity

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A particle in the xyxy–plane has instantaneous velocity v=3 i+4 j m s−1\mathbf v = 3\,\text{i} + 4\,\text{j}\,\text{m s}^{-1}. Determine its instantaneous speed. (a) 7 m s−17\,\text{m s}^{-1} (b) 4.7 m s−14.7\,\text{m s}^{-1} (c) 5 m s−15\,\text{m s}^{-1} (d) 4 m s−14\,\text{m s}^{-1}

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