![YoVeoAnime](/avatars/18288.jpg)
YoVeoAnime
15.02.2020 •
Physics
The driver of a car moving at 90.0 km/h presses down on the brake as the car enters a circular curve of radius 195.0 m. If the speed of the car is decreasing at a rate of 4.0 km/h each second, what is the magnitude of the acceleration of the car (in m/s2) at the instant its speed is 58.0 km/h?
Solved
Show answers
More tips
- F Food and Cooking How to Make Napoleon Cake: A Step-by-Step Guide...
- F Food and Cooking From Latte to Espresso: Which Coffee Drink is the Most Popular on Earth?...
- C Computers and Internet How to Set Up Internet on iPhone? Detailed Guide with Step-by-Step Instructions...
- P Philosophy 8 привычек, чтобы достичь счастливой жизни...
- F Food and Cooking How Many Grams Are In a Tablespoon?...
- G Goods and services How to Choose the Right Iron: Purchase Tips...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- H Health and Medicine How to Choose the Right Glasses?...
- H Health and Medicine What vaccines do children need?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
Answers on questions: Physics
- B Biology Amutation in the gene can cause duchenne muscular dystrophy....
- S Social Studies Avictim has been shot in their car. investigators perform a greiss test around the bullet holes. what are investigators most likely hoping to learn from this test?...
- E English Read the following passage from “shenandoah.” which sound device is expressed by the (bolded) words? shenandoah, (i long to hear you), away, you rolling river, oh, shenandoah,...
- C Chemistry Ineed on the ones that are circled pretty quick....
- B Business Suppose that your retirement benefits during your first year of retirement are $60,000 per year which is just enough to meet your cost of living during the first year. However,...
Ответ:
Approximately
.
Explanation:
The acceleration on the car comes in two parts:
The acceleration is due to the brakes is tangential to the circular curve.The acceleration due to the circular motion of the car is centripetal. It points towards the center of the circle.These two accelerations are perpendicular to each other.
Convert the current velocity to meters-per-second (
.)
Convert the acceleration due to braking to meters-per-second-squared (
.)
Calculate the acceleration due to the circular motion:
Since the two accelerations are perpendicular to each other, the resultant acceleration can be found using the Pythagorean Theorem
Ответ:
biomass, geothermal, hydropower, solar, and wind.
hope this helped!