A group of students wants to determine the acceleration of the object while it is rolling down the incline.
Rolling meter stick.
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I then push the meter stick forward so that the can rolls without slipping on both the table and the meter stick.
A rolling tape measure isn t meant to be exact but it can give you a good estimate with regard to the distance between two objects.
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Typically this will be 0 1 mm 0 01 cm or 0 001m on a ruler with a least count of 1 mm.
The students have access to the following equipment.
The 0 cm mark is lined up with the top of the can.
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Try to estimate the decimal fraction between the mm.
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Say for example that you have a fine new golf ball that s prone to rolling around.
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You should be able to make distance measurements to one digit more than the least count of the meter stick or ruler.
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Despite its limitations a measuring wheel is a tool that has been used for many years.
You place the golf ball at the 0 position on the measuring stick as shown in the below figure diagram a.
Measure the length of the ramp with the meter stick.
The incline is slightly less than one meter in length.
And land surveyors have a special version that can be used to measure elevations.
The starting point of both the center of the can and the edge of the meter stick are marked with a small object placed on the table.
This particular golf ball likes to roll around on top of a large measuring stick and you want to know how to calculate displacement when the ball moves.
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