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Physics 24 Online
OpenStudy (flexastexas):

Help finding slope of velocity graph

OpenStudy (flexastexas):

Graph the distance vs. time. Draw a straight line that represents your best guess about what the data represent and calculate the slope of the line [slope = (y2 – y1)/(x2 – x1)] using two points that are not data points. Write the slope on your graph. (Note: Because the ball is always rolling in the same direction, which we consider positive, distance and displacement will be the same thing.)

OpenStudy (flexastexas):

This is what it is asking me to do. I wrote my answer near the question on the data sheet but I have a feeling I was not right.

OpenStudy (flexastexas):

We meet again!

OpenStudy (flexastexas):

Let me know if you want me to explain something or you cant read my hand writing

OpenStudy (flexastexas):

For starters, I know that slop is rise over run but was I right?

OpenStudy (shamim):

Can u tell me abt average time

OpenStudy (shamim):

For example Given times r 4sec, 6sec, 5 sec Average time=?

OpenStudy (flexastexas):

Here ill show you the instructions just one second

OpenStudy (shamim):

Ok

OpenStudy (flexastexas):

Build the ramp as follows: 1. Obtain two pieces of connector channel from the ramp kit. Arrange them so that they are connected end to end. Insert a piece of plastic into the groove of both channels. Attach a second piece of plastic so that the two pieces of connector channel are connected seamlessly. Repeat the process until the ramp is 2 m long. 2. Place the apparatus on a level floor or long table. 3. Place one end of the ramp on a small stack of books. Use modeling clay and index cards to secure and stabilize the ramp. 4. Using measuring tape, measure the following distances from the bottom end of the ramp: 0.5 m, 1.0 m, 1.5 m, and 2.0 m. Place a piece of masking tape at each distance. Note: It is important that the ball rolls across the surface in as straight a line as possible. You may need to use extra books, index cards, or modeling clay to straighten, support, and stabilize the path for the ball. 5. Create a data table with columns for distance (m), average time (s), and average velocity (m/s), such as the one given.

OpenStudy (flexastexas):

Essentially, I released the ball down the ramp and measured the time it took to pass each marker (.5m, 1m, 1.5m, 2m) 4 times.

OpenStudy (flexastexas):

So the average time is the 4 different trials for the same marker

OpenStudy (shamim):

Yes

OpenStudy (shamim):

Can u tell me abt Time1 Time2 Time3 Time4

OpenStudy (flexastexas):

Time 1,2,3,4 mark the number to times I measured the time

OpenStudy (flexastexas):

So I was supposed to measure the time, 4 times and average the times

OpenStudy (flexastexas):

Am I making sense?

OpenStudy (shamim):

I think u r doing wrong!

OpenStudy (shamim):

U will make average for the point 1 mark

OpenStudy (shamim):

U will take 3 or 4 time for mark 1

OpenStudy (shamim):

Nd then calculate average of those time

OpenStudy (shamim):

For point mark1

OpenStudy (shamim):

Similarly u will get average time for point mark2

OpenStudy (shamim):

Similarly u will get average time for point 3 nd point 4

OpenStudy (flexastexas):

1. Place the ball at the top of the ramp. Start the stopwatch when the ball leaves the bottom of the ramp. Stop the stopwatch when the ball crosses the 2 m mark. Record the time. 2. Repeat Step 1 three more times. Be sure to release the ball from the same location on the ramp each time.

OpenStudy (flexastexas):

This is what the instructions say

OpenStudy (flexastexas):

So I must record the time for each distance marker 4 times

OpenStudy (flexastexas):

Still need help

OpenStudy (flexastexas):

Still need assistance

OpenStudy (peachpi):

what are the numbers written next to the distances?

OpenStudy (flexastexas):

Those are just numbers I put to remind myself how much meters are in inches

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