Starting from the origin at time t=0, with in | vedclass

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Question

Given $\quad \overrightarrow{ u }=5 \hat{ j } m / s , \overrightarrow{ a }=10 \hat{ i }+4 \hat{ j }, \quad$ final coordinate $\left(20, y_{0}\right)$

Vedclass · Accepted Answer

$2\,s$ and $18\, m$

Vedclass · Answer

Given $\quad \overrightarrow{ u }=5 \hat{ j } m / s , \overrightarrow{ a }=10 \hat{ i }+4 \hat{ j }, \quad$ final coordinate $\left(20, y_{0}ight)$ in time $t$

$S_{x}=4 u_x 	imes {t}+\frac{1}{2} a_{x} t^{2}$

$\frac{1}{2} 	imes 10 	imes t^{2}$

$t=2 \sec$

$S_{y}=u_{y} 	imes t+\frac{1}{2} a_{y} t^{2}$

$y_{0}=5 	imes 2+\frac{1}{2} 4 	imes 2^{2}=18 m$

$2 \sec$ and $18\, m$

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