Question

100 Time-displacement sketch of motion of two moving bodies A and B is shown Find b) the distance by which was ahead of A (W) VA and Ve fil) time in which can A catches to B. Ans. (1) 20 km (1) 25 ms 20 ms (1) 24 h km​

Answer 1

For the time interval of 4h,

Displacement of car A, DA=160km

Velocity of car A, vA=4h160km=40km/h

Displacement of car B, DB=120km−40km=80km

Velocity of car B, vB=4h80km=20km/h