Asked by carlo
A car m = 1850 kg is traveling at a constant speed of v = 30 m/s. The car experiences a force of drag (air resistance) of Fd = 300 N.
Write an expression for the power the car must produce Pi to maintain its speed.
Part (b) What is the power in HP?
No Attempt No Attempt Part
(c) The car encounters an incline which makes an angle of θ = 12 degrees with respect to the horizontal. The cruise control kicks in and increases the cars power to maintain its speed. What is the new power (in HP) required to maintain a constant speed?
Write an expression for the power the car must produce Pi to maintain its speed.
Part (b) What is the power in HP?
No Attempt No Attempt Part
(c) The car encounters an incline which makes an angle of θ = 12 degrees with respect to the horizontal. The cruise control kicks in and increases the cars power to maintain its speed. What is the new power (in HP) required to maintain a constant speed?
Answers
Answered by
Elena
P(i)=F(d) •v =300 •30=9000 W=12.07 hp
P=[P(d)+mgsinα] •v=
=(300+1850•9.8•sin12) •30 =
=18231.3 W=24.45 hp
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