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A bicyclist pedals along a straight road with velocity, v, given in the figure below. She starts 7 miles from a lake; positive velocities take her away from the lake and negative velocities take her toward the lake.
http://www.webassign.net/hgmcalc/5326fig.gif
When is the cyclist farthest from the lake?
t = 1 hours (i got this part)
Approximately how far away is she at this time? Give a best estimate. (Round your answer to the nearest whole number.)
miles
 one year ago
 one year ago
A bicyclist pedals along a straight road with velocity, v, given in the figure below. She starts 7 miles from a lake; positive velocities take her away from the lake and negative velocities take her toward the lake. http://www.webassign.net/hgmcalc/5326fig.gif When is the cyclist farthest from the lake? t = 1 hours (i got this part) Approximately how far away is she at this time? Give a best estimate. (Round your answer to the nearest whole number.) miles
 one year ago
 one year ago

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NoelGrecoBest ResponseYou've already chosen the best response.0
When she starts off, she's going toward the lake (v<0). Her actual displacement from the starting point is the area between the graph and the xaxis with areas below the axis negative (closer to the lake). Each division on the xaxis is 1/6 hr. You have to estimate the area in each interval.
 one year ago

LdanielBest ResponseYou've already chosen the best response.0
yeah I know that my estimate was 77 miles and i was wrong. what would your estimate be?
 one year ago

NoelGrecoBest ResponseYou've already chosen the best response.0
I get 18. 77 is not reasonable because even if she pedaled at 30 mph for a whole hour she'd only go 30 miles. Each grid square represents 10/6 miles.
 one year ago
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