Question
Police use the formula s = 30fd to estimate the speed s (in mi/h) at which a car is traveling if it skids d feet after the brakes are applied suddenly. The number f is the coefficient of friction of the road, which is a measure of the "slipperiness" of the road. The table gives some typical estimates for f. Tar Concrete Gravel Dry Wet 1.0 0.5 0.8 0.4 0.2 0.1 (a) If a car skids 100 ft on wet concrete, how fast was it moving when the brakes were applied? (Round your answer to the nearest whole number.) mi/h (b) If a car is traveling at 32 mi/h, how far will it skid on wet tar? (Round your answer to the nearest foot.)

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Advanced Math

Other

Related Advanced Math Q&A

Find answers to questions asked by students like you.

Q: 3

A: The given differential equation is : y''-2y'+y=exx By the method of change of constant , m2-2m+1=0m-...

Q: Ok, so I know she converted the equation correctly but what do they mean by describe how you decided...

A: The standard form of the equation given is 2x2 + 4x - 12, this equation get converted into 2(x+1)2 -...

Q: Advanced Math Question

A: Note:- As per our guidelines, We can answer the first question since the exact one wasn’t specified....

Q: 3 Describe at least two features of a graph that would lead you using the following equation: y = 2"...

A: Describe the equation of the graph yx=2x-h+k

Q: If C:|z+2|=3 circle then calculate the following (at attachment) integral I1

A: Click to see the answer

Q: Answer all the question a through e plz and complete it

A: For the smaller aquarium,  l=40 cmb=20 cmh=30 cm Then, its volume is  V=40×20×30 cm3=24000 cm3 For t...

Q: Methods of solution and the correct answer to each question

A: By bartleby rules, only first task has been answered From the given figure, length of the water tank...

Q: This question is from.course integral equations. Please dont solve with the method of Ordinary diffe...

A: Given differential equation is                           d2udx2+u(x)=f(x)  ⋯⋯⋯⋯⋯ (1) with boundary c...

Q: Using a right Riemann sum over the given intervals, 13 22 27 35 -35 estimate "F(t)dt. F() 44 12 13 1...

A:  ANSWER