Question

Three cars A, B and C are moving side by side. As car A and B move ahead at the same speed(leaving car C behind) then which of the following statement is true:

• A. Car A, B and C are at rest with respect to each other.
• B. Car A and B are at rest with respect to each other.
• C. Car A and C are at rest with respect to each other
• D. Car A and B are in motion with respect to car C

Answer 1

Answer: (B), (D)

The correct options are
B

Car A and B are at rest with respect to each other.

D

Car A and B are in motion with respect to car C

Both cars A and B are changing their position with respect to the car C. Hence, car A and B are in motion with respect to car C.

However, with respect to car B, car A is not changing its position. Hence, car A and B are at rest with respect to each other.