Question

Which of the following statements is/are correct regarding distance-time graph of a vehicle shown below?

• A. The speed of the vehicle from 'o' to 'a' is constant.
• B. The vehicle is rest from 'a' to 'b'.
• C. The speed of the vehicle 'b' to 'c' is constant.
• D. The speed of the vehicle from 'b' to 'c' is not constant.

Answer 1

Answer: (A), (B), (C)

The correct options are
A The speed of the vehicle from 'o' to 'a' is constant.
B The vehicle is rest from 'a' to 'b'.
C The speed of the vehicle 'b' to 'c' is constant.

For 'o' to 'a' and from 'b' to 'c', the vehicle covers equal distances in equal intervals of time. Hence, the speed of the vehicle is constant in these portions.

From 'a' to 'b', there is no change in distance even after an increase in time. Thus, the vehicle was at rest from 'a' to b'.