Solve the problem.
-The grade resistance F of a car traveling up or down a hill is modeled by the equation F = W sin ϴ, where W is the weight of the car and ϴ is the angle of the hill's grade (ϴ > 0 for uphill travel, ϴ < 0
For downhill travel) . What is the grade resistance (to the nearest pound) of a 1750-lb car on a level
Road (ϴ = 0°) ?

Question

Solve the problem.
-The grade resistance F of a car traveling up or down a hill is modeled by the equation F = W sin ϴ, where W is the weight of the car and ϴ is the angle of the hill's grade (ϴ > 0 for uphill travel, ϴ < 0
For downhill travel). What is the grade resistance (to the nearest pound)of a 1750-lb car on a level
Road (ϴ = 0°)?

Quizplus · Accepted Answer

The grade resistance F = W sin ϴ. For a level road, ϴ = 0°, so F = 1750 sin(0°) = 0. Sin(0°) = 0, therefore, F = 0 lb.

Solve the Problem. -The Grade Resistance F of a Car Traveling Up or Traveling