Acceleration form velocityWhen a 1984 Alfa Romeo Spider sports car accelerates at the maximum possible rate, its motion during the first 20 s is extremely well modeled by the simple equation222Pwhere P 3.6 x 10W is the car's power output, m 1200kg is its mass, and v is in m/s. That is, the square of the car's velocity increases linearly with timePart AWhat is the car's speed at t-11 s?Express your answer using two significant figuresu Em/sSubmitRequest AnswerPart BWhat is the car's speed at t-20 s?Express your answer using two significant figuresu Em/sSubmitRequest AnswerPart CFind a symbolic expression, in terms of P, m, and t, for the car's acceleration at time ta(t)-

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Asked Jan 30, 2019
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Need help with a, b, and c. Thank you!

Acceleration form velocity
When a 1984 Alfa Romeo Spider sports car accelerates at the maximum possible rate, its motion during the first 20 s is extremely well modeled by the simple equation
222P
where P 3.6 x 10W is the car's power output, m 1200kg is its mass, and v is in m/s. That is, the square of the car's velocity increases linearly with time
Part A
What is the car's speed at t-11 s?
Express your answer using two significant figures
u E
m/s
Submit
Request Answer
Part B
What is the car's speed at t-20 s?
Express your answer using two significant figures
u E
m/s
Submit
Request Answer
Part C
Find a symbolic expression, in terms of P, m, and t, for the car's acceleration at time t
a(t)-
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Acceleration form velocity When a 1984 Alfa Romeo Spider sports car accelerates at the maximum possible rate, its motion during the first 20 s is extremely well modeled by the simple equation 222P where P 3.6 x 10W is the car's power output, m 1200kg is its mass, and v is in m/s. That is, the square of the car's velocity increases linearly with time Part A What is the car's speed at t-11 s? Express your answer using two significant figures u E m/s Submit Request Answer Part B What is the car's speed at t-20 s? Express your answer using two significant figures u E m/s Submit Request Answer Part C Find a symbolic expression, in terms of P, m, and t, for the car's acceleration at time t a(t)-

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Expert Answer

Step 1

Given:

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Step 2

Part (A):

The speed of car at t=11 s is given by,

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Step 3

The value of speed in two signif...

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