A 1450-kg sports car (including the driver) crosses the rounded top of a hill (radius = 88.0 m) at 20.0 m/s. - Determine the normal force exerted by the road on the car. - Determine the normal force exerted by the car on the 74.0-kg driver. - Determine the car speed at which the normal force on the driver equals zero.

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Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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A 1450-kg sports car (including the driver) crosses the rounded top of a hill (radius = 88.0 m) at 20.0 m/s.

- Determine the normal force exerted by the road on the car.

- Determine the normal force exerted by the car on the 74.0-kg driver.

- Determine the car speed at which the normal force on the driver equals zero.

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All of these answers were graded as incorrect... None of them are answering what I was asking either

Given: A 1450-kg sports car (including the driver) crosses the rounded top of a hill (radius = 88.0 m ) at 20.0 m/s.

1.) Determine the normal force exerted by the road on the car. (3 sig figs)

(Incorrect answers are shown: 8285, 8280, 8290, 14533, 14500, 14400, 14371)
 

2.) Determine the normal force exerted by the car on the 74.0-kg driver. where 1450 is weight of the sports car including the driver. (3 sig figs)

(Incorrect: 14500, -14500)

 

3.) Determine the car speed at which the normal force on the driver equals zero. (3 sig figs)

(Incorrect answers: 14.2 m/s

 
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