1.

Fig. 3.25 shows the x-tgraphs of car A and B. Thevelocity of car A with respectto car B will be...x(m) ↑252015T-10(A) +5m s-12.5m s5-(C)-5m s-1t(s+2.5m s-1Figure 3.25

Answer»

From the graph , the velocity of A = 15/(6-0)= 5/2 m/s

and velocity of B = 15/(6-3) = 5m/s

now velocity of A w.r.t B = Va -Vb = 2.5-5 = -2.5m/s

option B.



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