Express your answer using two significant figures. Vα ΑΣφ ? m/s Request Answer Submit Part B What is the car's speed at t-20 s? Express your answer using two significant figures. ΗVΟΙ ΑΣφ ? m/s Request Answer Submit Course Home

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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<Week 4 Fall 2019
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
2P
where P= 3.6 x 10 W is the car's power output, m = 1200kg is its mass, and u, 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 13s?
>
Express your answer using two significant figures.
Vα ΑΣφ
?
m/s
Request Answer
Submit
Part B
What is the car's speed at t-20 s?
Express your answer using two significant figures.
ΗVΟΙ ΑΣφ
?
m/s
Request Answer
Submit
Transcribed Image Text:<Week 4 Fall 2019 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 2P where P= 3.6 x 10 W is the car's power output, m = 1200kg is its mass, and u, 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 13s? > Express your answer using two significant figures. Vα ΑΣφ ? m/s Request Answer Submit Part B What is the car's speed at t-20 s? Express your answer using two significant figures. ΗVΟΙ ΑΣφ ? m/s Request Answer Submit
Course Home
<Week 4 Fall 2019
Acceleration form velocity
Part C
Find a symbolic expression, in terms of P, m, and t, for the car's acceleration at time t
VO A
?
a(t) =
Submit
Request Answer
Part D
Evaluate the acceleration at t-3.0 s
Express your answer using two significant figures.
να ΑΣφ
?
m/s
a=
Submit
Request Answer
Part E
Evaluate the acceleration at t=10 s
Express your answer using two significant figures.
Vη ΑΣφ.
?
m/s
a=
Submit
Request Answer
Transcribed Image Text:Course Home <Week 4 Fall 2019 Acceleration form velocity Part C Find a symbolic expression, in terms of P, m, and t, for the car's acceleration at time t VO A ? a(t) = Submit Request Answer Part D Evaluate the acceleration at t-3.0 s Express your answer using two significant figures. να ΑΣφ ? m/s a= Submit Request Answer Part E Evaluate the acceleration at t=10 s Express your answer using two significant figures. Vη ΑΣφ. ? m/s a= Submit Request Answer
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