cq_1_072

#$&*

PHY 241

Your 'cq_1_07.2' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

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An automobile rolls 10 meters down a constant incline with slope .05 in 8 seconds, starting from rest. The same automobile requires 5 seconds to roll the same distance down an incline with slope .10, again starting from rest.

• At what average rate is the automobile's acceleration changing with respect to the slope of the incline?

answer/question/discussion: ->->->->->->->->->->->-> :

.05 incline acceleration= 1.25m/s/8s= 0.156 m/s^2

.10 incline acceleration= 2m/s/5s= 0.4m/s^2

Average rate at which acceleration changes in regard to slope= 0.4m/s^2-0.156m/s^2/.05= 2.39m/s^2

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10 min

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@& You have miscalculated your accelerations by misidentifying average velocities as final velocities.*@