Sketch the displacement-time, velocity-time, and acceleration-time graphs for…
1.an object moving with constant velocity.
(Let the initial displacement be zero.)
2.an object moving with constant acceleration. (Let the initial displacement and velocity be zero.)
Answers
Answer:
When velocity is zero, the displacement-time graph should be horizontal. Since the acceleration is constant, the displacement-time graph will always be a parabola, the velocity-time graph will always be straight, and the acceleration-time graph will always be horizontal.
Answer:
nstantaneous velocity at a given time-instant for a particle can be found from the y-intercept of its velocity-time graph.
From a particle's velocity-time graph, its average velocity can be found by calculating the total area under the graph and then dividing it by the corresponding time-interval.
For a particle with uniform acceleration, velocity-time graph is a straight line. Its average velocity is given by v
avg
=(v
i
+v
f
)/2. From the graph, this can be found by drawing the y-intercepts of initial and final velocities and then drawing the mid-point.
In the given graph, instantaneous velocity =v
1
at t=t
1
and v
2
at t=t
2
.
Average velocity is found at E, i.e. mid-point of C and D.
