1) An eagle accelerates from 15 m/s to 22 m/s in 4 seconds. What is the eagle's average
acceleration?

2) A roller coaster picks up speed as it rolls down its first hill. Its initial speed is 4 m/s,
and 3 seconds later at the bottom its speed is 22 m/s. What is its average acceleration?

3) A car is said to go "zero to sixty in six point seven seconds (6.7 s)". 60 mph is equal to
26.8 m/s. What is its acceleration in m/s??

4) A car is moving at a speed of 35.8 m/s. What acceleration would it have if it took 2.0 s to
come to a complete stop?
5) A car traveling at 22.4 m/s skids to a stop in 2.55 s. Determine the acceleration of the car.
6) A plane has a takeoff speed of 88.3 m/s. It reached that speed in 30.8 s. Determine the
acceleration of the plane.
7) Rocket-powered sleds are used to test the human response to acceleration. If a rocket-
powered sled is accelerated to a speed of 444 m/s in 1.83 seconds, then what is the
acceleration of the sled?

1) Average acceleration is equal to the rate of change in velocity with respect to time. Here the final and initial velocities are given as 22 m/s and 15 m/s respectively and the time is given as 4 seconds.

So, average acceleration = (Final velocity-Initial velocity)/Time

Average acceleration = (22-15)/4= 1.75 m/s².

Thus, the average acceleration of eagle is 1.75 m/s²

2) Similarly we have to use the above formula for determining the average acceleration of the roller coaster. Here the initial velocity is 4 m/s and final velocity is 22 m/s and the time taken to reach this final speed is 3 seconds.

So, average acceleration = (Final velocity-Initial velocity)/Time

Average acceleration = (22-4)/3= 6 m/s².

Thus, the average acceleration of roller coaster is 6 m/s².

3) Acceleration = 26.8/6.7=4 m/s².

Acceleration in m/s² is 4 m/s².

4) Acceleration required to stop the car = -35.8/2=-17.9 m/s².

Acceleration required to stop the car is -17.9 m/s².

5) Acceleration of the car skidding to stop = (0-22.4)/2.55=-8.78 m/s².

Acceleration required to stop the car is -8.78 m/s².

6) Acceleration of the plane= 88.3/30.8=2.87 m/s².

Acceleration of the plane is 2.87 m/s².

7) Acceleration of the sled = 444/1.83=243 m/s².

Acceleration of the sled is 243 m/s².

Lanuel Lanuel · Answer 2 · 2022-03-18T15:10:51+01:00

The eagle's average acceleration is equal to 1.75 [tex]m/s^2[/tex].

Given the following data:

Initial velocity = 15 m/s.

Final velocity = 22 m/s.

Time = 4 seconds.

What is an acceleration?

An acceleration can be defined as the rate of change of the velocity of an object with respect to time. Also, it is usually measured in meter per seconds square.

Mathematically, acceleration is given by this formula:

[tex]a = \frac{V\;-\;U}{t}[/tex]

Where:

V is the final velocity.

U is the initial velocity.

t is the time measured in seconds.

Substituting the given parameters into the formula, we have;

[tex]a = \frac{22\;-\;15}{4}\\\\a=\frac{7}{4}[/tex]

Acceleration, a = 1.75 [tex]m/s^2[/tex].

Note: You should use the above formula to solve the other exercises.

Read more on acceleration here: brainly.com/question/24728358