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FULL SCley 8. Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc.GW

Question

A woman is riding a Jet Ski at a speed of 30 m/s and notices a seawall straight ahead. The farthest she can lean the craft in order to make a turn is 20°. This situation is like that of a car on a curve that is banked at an angle of 20°. If she tries to make the turn without slowing down, what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash?

FULL SC
ley 8. Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc.
G
W
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FULL SC ley 8. Sons, Inc. All Rights Reserved. A Division of John Wiley & Sons, Inc. G W

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Step 1

The horizontal force pushing the jet ski towards the center of the curve acts as t...

mg tan e
r =
g tan e
(30m/s)
(9.8m/s2)tan 20°
=252.31m
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mg tan e r = g tan e (30m/s) (9.8m/s2)tan 20° =252.31m

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