Power is calculated by dividing the work done with the time interval of the motion. Work, on the other hand, is force times the distance traveled. Therefore, we can calculate as follows:
60.0 mi/h = 26.82 m/s
The car accelerates at:
<span>v2 = v1 + at </span>
<span>a = [v2 - v1] / t </span>
<span>a = 1.49m/s² </span>
<span>The distance it travels at this acceleration in 15.0 s is: </span>
<span>d = [v1 + v2] t / 2 </span>
<span>d = (0 + 22.4m/s)15.0s / 2 </span>
<span>d = 168m </span>
<span>P = m (a)(d) / t </span>
<span>= (1300kg) (1.49m/s²) (168m) / 15.0s </span>
<span>= 22,700 W</span>
We define acceleration as the rate of change of the velocity
Thus, if you have positive velocity and positive acceleration, your <u>speed increases.</u>
If you have positive velocity and negative acceleration, your speed decreases.
Now you get the idea, we will see that the correct option is graph 1.
We know that the car moves towards the right (let's define this as "the car has positive velocity") and we also know that te car is slowing down constantly (thus the acceleration needs to be negative and constant).
By looking at the graphs, the only one with these properties is graph 1.
If you want to learn more, you can read:
brainly.com/question/12550364
While a gymnast is in the air during a leap, her Angular momentum about her center of mass<em> (A)</em> and her linear momentum<em> (D)</em> must remain constant for her.
Answer:
Chicken Legs
Explanation:
So you fry the legs into chicken:)
What scenario is there to answer the question