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Asked Sep 19, 2019
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A 60.0 kg skier with an initial speed of 11.0 m/s coasts up a 2.50 m high rise as shown in Figure 6.23. Find his final speed at the top, given that the coefficient of friction between her skis and the snow is 0.0800. (Hint: Find the distance traveled up the incline assuming a straight-line path as shown in the figure.)
 m/s


Figure 6.23
KE+ PE,+ OE
KE,
2.5 m
350
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KE+ PE,+ OE KE, 2.5 m 350

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Expert Answer

Step 1

The below figure represents the distance travelled up the plane by a 60kg skier with an initai speed of 11.0m/s which is 2.50m high rise .

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א לv ר

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Step 2

Write the expression for distance travelle...

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h L = sin 35° 2.5m sin 35° = 4.358m Frictional force along the plane =- mg cose [1] Work done by Frictional force along the plane= -mg COS0XL 2 Work done bygravitational force =-mgh [3]

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Kinematics

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