Answer:
(i) Since, speed is a scalar quantity
and speedometer reads instantaneous speed of the car, hence both the cars have
same speed.
(ii) Since, velocity
is a vector quantity, hence both the cars are having opposite velocities as
they are moving in opposite directions.
(iii) Relative
velocity of car A w.r.t. car \[B={{\upsilon }_{A}}+{{\upsilon
}_{B}}=(50km/h+50km/h)=100km/h\] due east.
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