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)The average acceleration of eagle is 1.75 m/s².

2) The average acceleration of roller coaster is 6 m/s².

3)Acceleration in m/s² is 4 m/s².

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

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

6) Acceleration of the plane is 2.87 m/s².

7)Acceleration of the sled is 243 m/s².

Explanation:

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.

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with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.