An object is moving in positive direction till time t and then turns back with the same negative acceleration. The velocity time graph which best describes the situation is:

Question

An object is moving in positive direction till time t and then turns back with the same negative acceleration. The velocity time graph which best describes the situation is: (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Here, we observe that the object is moving in positive direction till time

t = 0

to

t = t_{1}

and at

t = t_{1}

we find that the velocity become negative i.e., the object changes its direction at

t = t_{1}

and continues in negative direction hence forth. For acceleration we can observe that throughtout the journey the slope of the v-t curve is negative and hence, acceleration is negative. Thus, the area under the

v - t

curve gives displacement.

Q. An object is moving in positive direction till time t and then turns back with the same negative acceleration. The velocity time graph which best describes the situation is: