Q. One o the rectangular components of a velocity of $60kmh^{- 1}$ is 30 $kmh^{- 1}$. The other rectangular component is
A) 30 $kmh^{- 1}$
B) 30 $\sqrt{3}\ kmh^{- 1}$
C) 30 $\sqrt{2\ }kmh^{- 1}$
D) Zero
Explanation
(b) $60^{2} = 30^{2} + v^{2}$ or $v^{2} = 90 \times 30$
or $v = 30\sqrt{3}$ km $h^{- 1}$.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.