**Unformatted text preview: **the car at a rate of 4.06 hp. d) In this case, approximating the sine of the slope by the tangent is appropriate, and the grade is , 0203 . km/h)) m/s)/(3.6 km/h)((1 . 60 )( m/s kg)(9.80 1800 ( W/hp) hp)(746 00 . 8 ( 2 = very close to a 2% grade....

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