Bri S.

# When estimating distances from a table of velocity data, it is not necessary that the time intervals are equally spaced.

When estimating distances from a table of velocity data, it is not necessary that the time intervals are equally spaced. After a space ship is launched, the following velocity data is obtained. Use these data to estimate the height above the Earth's surface at 122 seconds. Report answers accurate to 1 places. This is not meant to be a trick question...be careful of the UNITS!

 t (sec)v (ft/s) 0 0 7 154 17 374 19 418 54 1188 60 1320 71 1837 122 4234

lower estimate of distance traveled: I got 37037 which is wrong. I multiplied the #s in the second column times 7 except for 4234.

upper estimate of distance traveled = 66675 which is also wrong. I multiplied all the #s in the 2nd column by 7 except 0.

DId I do my math wrong? what did I mess up on? My asnwer is suppose to be in miles so idk if I need to convert feet to miles? it also says to report my asnwer to 1 places...

## 3 Answers By Expert Tutors

By:

Kevin K.

tutor
Averaging the left and right sums would not result in the midpoint estimate, it would give you the trapezoidal estimate - which in all fairness is typically better than the midpoint estimate anyway.
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7d

Bri S.

oh ok, i understand now, thank you William!
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7d

Bri S.

thank you :)
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7d

Bri S.

thank you :)
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7d

Ross C.

tutor
No problem!
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6d

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