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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I need help with e and f. I do not have a friction table that was given. I have tried submitting this question a few times. I don't know what other info to provide. This is all I have. My bd is 11. I don't understand question f at all. I did e but want to check my answers.
Transcribed Image Text:Car On Roup
Ing
A 2750kg car is
braking while driving down a ramp,
whose angle is 5 degrees plus the day of
the month of your birth - if you were
born on the 15", your ramp angle is
20degrees.
Assume the car tires are rolling, not
sliding while braking, so use static
friction coefficients throughout, and the
car's acceleration is nonzero. Also
assume weight is distributed evenly over
all four tires, which all provide the same
amount of friction as each other - 4 of
the total.
Use friction coefficients for rubber on
concrete from the table in Chapter 5 of
your text, and for rubber on ice use the
shoes on ice coefficient.
A. What is your birthday of the month and
the ramp angle?
B. Sketch this problem.
C. Draw a complete and correct Free Body
Diagram for this problem. Label all
forces.
D. Write the equations of motion (N2x and
N2y).
E. Calculate the size and direction of all
forces and their components in terms of
the coefficient of static friction us.
F. (Three cases) What is the maximum
braking deceleration the tires can
provide to the car before they start
sliding if the road is
Dry? Wet??
ley???
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