I Review I ConstantsThe engine in an imaginary sports car can provideconstant power to the wheels over a range ofspeeds from 0 to 70 miles per hour (mph). At fullpower, the car can accelerate from zero to 32.0mph in time 1.20 s.At full power, how long would it take for the car to accelerate from 0 to 64.0 mph ? Neglect frictionand air resistance.Express your answer in seconds.View Available Hint(s)4.80 sSubmitPrevious AnswersCorrectOf course, neglecting friction, especially air friction, is completely unrealistic at such speeds.Part BA more realistic car would cause the wheels to spin in a manner that would result in the groundpushing it forward with a constant force (in contrast to the constant power in Part A). If such a sportscar went from zero to 32.0 mph in time 1.20 s , how long would it take to go from zero to 64.0 mph?Express your answer numerically, in seconds.• View Available Hint(s)?S

In the first case at constant power, the power is: P1=0.5mv12tP1=0.5m7021.20 In the second case at…

The engine in an imaginary sports car can provide constant power to the wheels over a range of speeds from 0 to 70 miles per hour (mph). At full power, the car can accelerate from zero to 32.0 mph in time 1.20 s .

The engine in an imaginary sports car can provide constant power to the wheels over a range of speeds from 0 to 70 miles per hour (mph). At full power, the car can accelerate from zero to 32.0 mph in time 1.20 s .

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

I Review I Constants
The engine in an imaginary sports car can provide
constant power to the wheels over a range of
speeds from 0 to 70 miles per hour (mph). At full
power, the car can accelerate from zero to 32.0
mph in time 1.20 s.
At full power, how long would it take for the car to accelerate from 0 to 64.0 mph ? Neglect friction
and air resistance.
Express your answer in seconds.
View Available Hint(s)
4.80 s
Submit
Previous Answers
Correct
Of course, neglecting friction, especially air friction, is completely unrealistic at such speeds.
Part B
A more realistic car would cause the wheels to spin in a manner that would result in the ground
pushing it forward with a constant force (in contrast to the constant power in Part A). If such a sports
car went from zero to 32.0 mph in time 1.20 s , how long would it take to go from zero to 64.0 mph
?
Express your answer numerically, in seconds.
• View Available Hint(s)
?
S

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