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September 21, 2014

September 21, 2014

Posted by **Anonymous** on Tuesday, June 19, 2012 at 8:10am.

(a)What is the predicted range?

(b)What is the uncertainty in the predicted range? [Remember that you can treat the uncertainty in the sin(2) factor as zero since it contributes no errors at 45°.]

They launch the ball ten times and find the results for the range in centimeters to be 109.5, 109.6, 106.8, 112.5, 111.3, 106.5, 116.5, 110.1, 109.0, and 111.5.

(a)iv) What is the uncertainty in any single range measurement? [Hint: Think "standard deviation of measured values".]

(b)What is the standard error of the mean in the average range?

(c)Suppose the launch angle were the same for all ten trials, but only known (measured) to 1.3% . You would then expect the angular uncertainty to increase the spread in the measured range values by:

- Physics question -
**Anonymous**, Tuesday, June 19, 2012 at 11:10amThe average range is calculated to be 105.8

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