Question

One of the rectangular components of velocity of 80 ${kmh}^{- 1}$ is 40 Km $h^{- 1}$ What are the other components ?

Moderate

Solution

R = 80 km/h, $R_{x}$ = 40 km/h
but $R^{2} = {R_{x}}^{2} + {R_{y}}^{2} \Rightarrow 80^{2} = 40^{2} + {R_{y}}^{2}$
$\Rightarrow {R_{y}}^{2} = 4800$
$\Rightarrow R_{y} = \sqrt{4800} = 40 \sqrt{3} = 69.28$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

SCAN ME