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phy 121
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** CQ_1_07.2_labelMessages **
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: ->->->->->->->->->->->-> :
at the 1st trial at slope .05, the average rate of acceleration is .313m/s^2
at the 2nd trial at slope .10, the average rate of acceleration is .8m/s^2
aAve/slope
1st (.05, .313)
2nd (.10, .8)
rise over run
(.313-.8)/(.05-.10)= .487/.05=9.74m's^2/slope
With respect to the slope of the line, the average rate at which the automobile's acceleration changes is 9.74m/s^2
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5-10 min
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