Question

The displacement-time graph of two moving objects. A and B are shown in the figure given below. Which of the following is incorrect?

(1) B is moving with constant velocity
(2) A is moving with increasing speed
(3) B is moving with non-zero constant acceleration
(4) Acceleration of A may be constant

Answer 1

B is moving with constant velocity $\to$ slope is constant
A is moving with increasing speed $\to$ slope is increasing with time
B is moving with non-zero constant acceleration $\to$ velocity of B is constant so acceleration will be zero
Acceleration of A may be constant $\to$ this is possible