.ll AT&T; Wi-Fi 10:38 AM instructure-uploads.s3.amazonaws.com Understanding Velo
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Question
.ll AT&T; Wi-Fi 10:38 AM instructure-uploads.s3.amazonaws.com Understanding Veloaity and Position A cart can move in 1-dimension on a horizontal track. Use coordinates as shown in the diagram at right. Different motions for this cart produce the position vs time graphs shown in the following questions. Descibe the motion shown for each position vs time graph. Direction? Speed?T To describe the motion, you must answer BOTH. What is happening with the speed of the cart? Your answers should come from the table at left. What direction is the cart moving? not moving moving right moving left increasing 8. For the position vs time graph shown direction?) the cart is (speed?) and the speed is 9. For the position vs time graph shown. (direction?) the cart is (speed?) and the speed is 10. For the position vs time graph shown (direction) the cart is (speed?) and the speed is 11. For the position vs time graph shown. (direction?) the cart is (speed?) and the speed is TMCC PHYS-1 Lab Homework Page 3 of 12
Explanation / Answer
8)
Since the position is not changing, it means the cart is not moving.
Since it is not moving, velocity is zero.
9)
Since the position is increasing, the cart is moving right.
Speed is the slope of the graph. Since the slope is positive, speed is increasing.
10)
Position is decreasing, so the cart is moving left.
Negative slope means that the speed is decreasing.
11)
Poition increasing means the cart is moving right.
Positive slope measn speed is increasing.
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