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Answer in Mechanics | Relativity for Parvinder singh #138285

Author:
March 12th, 2023

solution

velocity of train A(va)=50km/hr

velocity of train B(vb)=80km/hr

displacement of train A(sa)=1200 km

velocity of train B with respect to train A(vba) =vb – va

vba =80 – 50=30km/hr

time taken by train B to over take the train A(t)=“frac{s_a}{v_{ba}}=frac{1200}{30}=40hr”

distance travel by train B in 40hr (sb) =“v_bt”

“s_b=80times40=3200km”

so times taken by train B to excell train A is 40hr and distance travel by train B is 3200km.

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