Q.64

Expert-verifiedFound in: Page 230

Book edition
4th

Author(s)
Randall D. Knight

Pages
1240 pages

ISBN
9780133942651

A Porsche Turbo has a rated engine power of hp. of the power is lost in the drive train, and reaches the wheels. The total mass of the car and driver is , and two-thirds of the weight is over the drive wheels.

a. What is the maximum acceleration of the Porsche on a concrete surface where ? Hint: What force pushes the car forward?

b. If the Porsche accelerates at , what is its speed when it reaches maximum power output?

c. How long does it take the Porsche to reach the maximum power output?

a. The maximum acceleration of Porsche is .

b. The speed at the time of maximum power output is .

c. The Porsche take to reach maximum output.

The relation between power and velocity is

The power of Porsche in Watt is

The gravitational force on the car is

The force on drive wheel is

the static friction of tyres on road is

The wheel on use of the power generated by the motor. Therefore, the power output is

Considering the following kinematics equation,

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