A horse rider covers half the distance with 5 | vedclass

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Question

$t _{ AB }=\frac{ x }{5 m / s }$

In motion $BC$

$x = d _1+ d _2$

where $d _1 , d _2$ we the distance travelled with $10\,m / s$ and $15\,m /

Vedclass · Accepted Answer

$50$

Vedclass · Answer

$t _{ AB }=\frac{ x }{5 m / s }$

In motion $BC$

$x = d _1+ d _2$

where $d _1 , d _2$ we the distance travelled with $10\,m / s$ and $15\,m / s$ respectively in equal time intervals

$\frac{' t^{\prime}}{2} 	ext { each }$

$d_1=\frac{10 t}{2}, d_2=\frac{15 t }{2}$

$d_1+d_2=x=\frac{t}{2}(10+15)=\frac{25 t }{2}$

$< v >=\frac{2 x }{\frac{ x }{5}+\frac{2 x }{25}}=\frac{2 	imes 25}{5+2}=\frac{50}{7} m / s$

Ans. : $50$

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