Q.

Which of the following statements is true for a car moving on the road? 

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a

With respect to the frame of reference attached to the person sitting in the car, the car is at rest.
 

b

With respect to the frame of reference attached to the person outside the car, the car is at rest.

c

None of the above

d

With respect to the frame of reference attached to the ground, the car is at rest.

answer is B.

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Detailed Solution

For a car in motion, if we describe this event w.r.t. a frame of reference attached to the person sitting inside the car, the car will appear to be at rest as the person inside the car (i.e. observer) is also moving with same velocity and in the same direction as car.

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