3. Consistent, repeatable measurements Pushing the cart with your hand, trying t

Question

3. Consistent, repeatable measurements Pushing the cart with your hand, trying to keep it moving with a constant velocity, is not easily repeatable. Set up one end of the ramp with the ramp stop and the cart which has a spring-loaded launcher up against it with the cart's launcher facing away from the ramp stop. Launch the other cart5 times using the number 1 setting of the first cart's launcher. Take data each time of the second cart's position and velocity. Determine the slopes of the position versus time graphs and determine the corresponding average velocities of the velocity versus time graphs. Enter the data below

Explanation / Answer

2.

- The sources of the uncertainty mainly due to the limited accuracy of measuring devices and senses of the observer.

Friction and the use of the instruments are also important to notesources.

- Pushing the cart with a constant velocity is considered as random uncertainties.

- Measurement apparatus for measuring the speed and time are considere as systematic uncertainties.

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