sr9014991
Answered

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Two railway tracks are parallel to west east direction. Along one track, train A moves with a speed of 45 m/s from west to east, while along the second track, train B moves with a speed of 60 m/s from east to west . calculate speed of Bw.r.t. A​

Sagot :

Nevhethaa4

Answer:

(i) Relative velocity of B w.r.t A= Sum of speeds of trains

=54+90

=144kmph

(ii)Relative velocity of B w.r.t Ground(G)=v

B/G

=−90kmph

v

G

=0

Relative velocity of ground(G) w.r.t B =v

G/B

=v

G

−v

B/G

v

G/B

=0−(−90)

v

G/B

=90kmph

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