In what time (in sec) will a train 100 ; m lo | vedclass

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Question

(A) To cross an electric pole,the train must cover a distance equal to its own length.Length of the train $(d)$ = $100 \; m$.Speed of the train $(v)$

Vedclass · Accepted Answer

$2.5$

Vedclass · Answer

(A) To cross an electric pole,the train must cover a distance equal to its own length.Length of the train $(d)$ = $100 \; m$.Speed of the train $(v)$ = $144 \; km/hr$.First,convert the speed from $km/hr$ to $m/s$ by multiplying by $\frac{5}{18}$:$v = 144 	imes \frac{5}{18} \; m/s = 8 	imes 5 \; m/s = 40 \; m/s$.Using the formula,$	ext{Time} (t) = \frac{	ext{Distance}}{	ext{Speed}}$:$t = \frac{100}{40} \; s = 2.5 \; s$.Therefore,the train will cross the pole in $2.5 \; seconds$.

In what time (in $sec$) will a train $100 \; m$ long cross an electric pole,if its speed is $144 \; km/hr$?

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