brandon0227
05.07.2019 •
Physics
How much farther will a car skid if it locks its brakes at 60 mph as compared to a skid from 15 mph? assume the braking force that will eventually stop the cars is provided by the road and that it acts with equal magnitude in both situations. distance increases by a factor of 4 times 16 times impossible to tell because the mass of the car is not known impossible to tell because frictional force is not known
Solved
Show answers
More tips
- C Computers and Internet How to Create a Website for Free and Easy?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Physics
- P Physics In which situation would an object weigh the LEAST? (assume all the objects have the same mass) A) an object on Earth B) an object on the moon C) an object half-way...
- G Geography Name 2 volcanoes on a convergent and divergent boundary and 2 hotspots....
- H History Two elements that monarchs used to establish legitimacy was the preception of wealth and being one with God. In what ways did Mansa Musa use these elements to establish...
Ответ:
v₀ = initial velocity of the car before brakes are applied
v = final velocity of the car after it comes to a stop = 0 mph
d = stopping distance
a = acceleration caused due to braking force
Using the kinematics equation
v² = v²₀ - 2 a d
0² = v²₀ - 2 a d
d = v²₀ /(2a)
Since the acceleration is same , the stopping distance is directly proportional to the square of the initial speed of car before brakes are applied
hence
d₁/d₂ = v²₀₁/v²₀₂
Given that : v₀₁ = 60 mph and v₀₂ = 15 mph
inserting the values
d₁/d₂ = (60)²/(15)²
d₁ = 16 d₂
hence distance increases by a factor of 16 times.
Ответ:
It increases the circulation of blood because it is a form of exercise.