My Notes I M13 1.7 X.093 9. 417 points I Previous Answers Here are the positions
ID: 2219780 • Letter: M
Question
My Notes I M13 1.7 X.093 9. 417 points I Previous Answers Here are the positions at three different times for a bee in flight (a bee's top speed is about 7 m/s) 5.4 s 6.2 s time 5.8 s position -2.4, 9.5, 0 m -0.7, 6.8, 0 m 0.7, 3.0 0 m (a) Between 5.4 s and 5.8 s, what was the bee's average velocity? Be careful with signs v 0 m/s avg, a 4.25 -6.75 (b) Between 5.4 s and 6.2 s, what was the bee's average velocity? Be careful with signs. (i)avg b 3.875 00 m/s v -8.125 (c) of the two average velocities you calculated, which is the best estimate of the bee's instantaneous velocity at time 5.4 s? Select (d) Using the best information available, what was the displacement of the bee during the time interval from 5.4 s to 5.42 s? Ai 0 mExplanation / Answer
As the more accurate will be the average velocity if it is calculated over more travelled Distance
Here Distance travelled it more between 5.4 sec and 5.8 sec hence more Accurate
Displacemet = veocity*time
= (4.25 , -6.75 , 0)*(5.42-5.4)
= ( 0.085 , - 0.135 , 0)
= sqrt(0.085^2 + 0.135^2 + 0^2)
= 0.1595 m
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