Question

Determine the average velocity of the cart during the time interval from frame 100100 to frame 124124. For all vector quantities, we’ll use the convention that right is positive and left is negative.

Answer 1

The video showing the movement of the cart during the time interval is gotten from the link;

https://mediaplayer.pearsoncmg.com/assets/_frames.true/frames.true_white_ruler

Answer:

V_avg = 1.8 m/s

Explanation:

From the video, the distance moved by the cart during the 24 frames is 18 cm or 0.18 m.

Now, the speed is at the rate of 240 frames per seconds.

Now, average velocity is given as;

V_avg = distance/time

Time = 24 frames/240 frames/s

Time = 0.1 s

Thus;

V_avg = 0.18/0.1

V_avg = 1.8 m/s