94. while you are traveling in a car on a straight, level interstate highway at 90 km/h another car passes you in the same direction, its speedometer reads 120 km/h (a) what is your velocity relative to the other driver? (b) what is the other car's velocity relative to you?

a) = -30 m/s

b) = 30 m/s

Explanation:

a)

Consider the car A travel at a velocity of = 90 km/h and the car B travel at the velocity of = 120 km/h. As the velocity of the car B is greater than the car A, So it cross the car A.  Consider The velocity of car A relative to car B is and it is equal to the velocity of car A minus the velocity of car B.

= -

= 90 - 120

= -30 m/s

b)

Consider The velocity of car B relative to car A is and it is equal to the velocity of car B minus the velocity of car A.

= -

= 120 - 90

= 30 m/s

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