PHYSICS 1214-How is the mass of the cart,found from the tension

Subject: Physics    / General Physics
Question

How is the mass of the cart, , found from the tension vs. acceleration graph?

It’s equal to the y-intercept of the best-fit line.

It’s equal to the slope of the best-fit line.

It’s equal to the reciprocal of the slope of the best-fit line.

It’s equal to the x-intercept of the best-fit line.

QUESTION 2

How should the acceleration be found in each trial?

Fit the position vs. time graph to a parabolaand dividing thecoefficientinfront of by 2.

Take. the slope of best-fit-line of the velocity vs. time graph.

Fit the position vs. time graph to a parabola and multiple the coefficient in front of by 2.

Take the reciprocal of the slope ofbest-fit-line of the velocity vs. time graph.

Taking the average of the acceleration vs. time graph

QUESTION 4

Why is it important to press the tare button on the force sensor before each run?

The sensor will get too hot and shut down

The force data may be offset and not have a proper zero value

Who cares why it’s important, I just follow instructions without thinking.

Capstone will not start recording until tare is pressed

QUESTION 5

How do you find the frictional force from the tension vs. acceleration graph?

It’s equal to the y-intercept of the best-fit line.

It’s equal to the x-intercept of the best-fit line.

It’s equal to the reciprocal of the slope of the best-fit line.

It’s equal to the slop of the best-fit line.

3. which of the following is correct?

a. Tension = mg

b. T > mg

c. T < mg