2.Motion in Straight Line
medium

$150\, m$ લંબાઇ ધરાવતી ટ્રેન $45 \,km/hr$ ની ઝડપથી ગતિ કરે છે,$850 \,m$ લંબાઇ ધરાવતા પુલને પસાર કરવા માટે કેટલા..........$sec$ નો સમય લાગે?

A

$56$

B

$68$

C

$80$

D

$92$

Solution

(c) Total distance to be covered for crossing the bridge $=$ length of train $+$ length of bridge

$ = 150m + 850m = 1000m$

${\rm{Time }} = \frac{{{\rm{Distance }}}}{{{\rm{Velocity }}}} = \frac{{1000}}{{45 \times \frac{5}{{18}}}} = 80\;sec$

Standard 11
Physics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.