Question

6. What will you say about the motion of a body :
(a) If its D-T graph is a straight line parallel to time axis ?
(b) If its D-T graph is a straight line having a constant angle with time axis?
(c) If its V-T graph is a line parallel to time axis ?​

Answer 1

Answer:

(a) The body is at rest.

(b) The body is at uniform motion.

(c) The body is either at uniform motion or at rest.

Explanation:

(a) The body is at rest.

When we draw the graph of ques. (a) we find that the distance/displacement is 0, the time is increasing. So, the body is at rest.

(b) The body is at uniform motion.

When we draw the graph for ques. (b) we find that the distance is also increasing with time . So the body is at uniform motion.

(c) The body is either at uniform motion or at rest.

When we draw the graph for ques. (c) we find that the velocity (or speed) is not increasing with time, which means the body is not accelerating. So in this case the body is either moving with uniform velocity (or speed) and motion or the body is at rest