Question

Course Contents »Homework 03 » Position vs Time Plot Position A 30 н К 20 D C 10 E I Time J 4 0 8 10 14 16 18 20 10 B Identify the place on the above position vs. time graph when each of the following is true: The object is the farthest from the origin. В When the object has the largest negative velocity. G When the object undergoes the largest acceleration. А When the object has the highest speed K What feature of the graph tells you about position? About velocity? About acceleration? Incorrect. Tries 2/10 Previous Tries Submit Answer 2

Answer 1

From the given positin-time diagram:

1. At point G the object is farthest from the origin.

2. The slope of positiontime graph gives the velocity of the object.

The most negative slope of the object is at H. So, at H, object has largest negative velocity.

3. Acceleration is the measurement of change in velocity with respect to time. So, in position-time graph when slope changes rapidly, the object has largest acceleration.

Hence, at B the object has largest acceleration.

4. For highest speed, the position-time graph should have maximum magnitude of slope.

Hence, at K the object has highest speed.

For any doubt please comment.