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Use a Calculator to Find the Function Value F\mathrm { F }

question 265

Multiple Choice

Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.
-The grade resistance F\mathrm { F } of a car traveling up or down a hill is modeled by the equation F=Wsinθ\mathrm { F } = \mathrm { W } \sin \theta , where WW is the weight of the car and θ\theta is the angle of the hill's grade (θ>0( \theta > 0 for uphill travel, θ<0\theta < 0 for downhill travel) . A 2025-lb car has just rolled off a sheer vertical cliff (θ=90) \left( \theta = - 90 ^ { \circ } \right) . What is the car's grade resistance?

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