Acceleration is the change in velocity with respect to the time. The acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.
<h3>
Given information-</h3>
Segment A runs from 0 seconds 0 meters per second to 1 seconds 30 meters per second.
Segment B runs to 3 seconds 30 meters per second.
Segment C runs to 6 seconds 10 meters per second.
Segment D runs to 7 seconds 10 meters per second.
Segment E runs to 10 seconds 20 meters per second.
<h3>Acceleration</h3>
Acceleration is the change in velocity with respect to the time. Acceleration of a vector quantity which means it has both magnitude and the direction. It can be given as,
Here 
denotes the time and 
denotes the velocity of the body.
Acceleration at segment C,
Thus the acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.
Learn more about the acceleration here;
brainly.com/question/2437624
Answer: The angle of elevation X = 62.7 degrees
Step-by-step explanation: Please refer to the attached picture for details.
The ramp rising from the ground is given as line XZ which is 18 feet. Also it rises 16 off the ground which is also given as line YZ. The angle of elevation of the ground, that is, angle X is the angle formed at point X where the ramp begins to rise. We shall apply the trigonometric ratio to solve for angle X, having been given two sides of the right angled triangle. The side YZ is the line facing the reference angle (opposite) while the side XZ is the line facing the right angle (hypotenuse).
SinX = opposite/hypotenuse
SinX = 16/18
SinX = 8/9
SinX = 0.8888
From your calculator or table of values,
X = 62.7339
Rounded to the nearest tenth of a degree,
X = 62.7 degrees
For the first question on the screenshot, you need to put this same exact order as I put it.
A D B C
Now the second question
A = 3 units
B = 4 units
C = 4 units
D = 3 units
Answer is B,
not A range is 7,
not D - outlier is 1,
not c mean is 5.4
