Calculating Average Acceleration of a Bouncing Super Ball

In summary, a 45.0-g Super Ball traveling at 30.0 m/s rebounds off a brick wall at 20.5 m/s. With a contact time of 3.70 ms, the average acceleration of the ball during this time interval is 13600 m/s squared.
  • #1
MG5
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A 45.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 20.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.70 ms, what is the magnitude of the average acceleration of the ball during this time interval?

Apparently the answer is 13600 m/s squared.

No idea how to get that though.
 
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  • #2
What is average acceleration?
 
  • #3
MG5 said:
A 45.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 20.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.70 ms, what is the magnitude of the average acceleration of the ball during this time interval?

Apparently the answer is 13600 m/s squared.

No idea how to get that though.

I'm a bit sleepy at the moment and might have overlooked something, but it doesn't make sense that the acceleration is positive when the ball slows down by 9,5m/s..
 

1. What is average acceleration?

Average acceleration is the rate of change of an object's velocity over a certain period of time. It is typically calculated by dividing the change in velocity by the change in time.

2. How do you find average acceleration?

To find average acceleration, you need to know the initial velocity, final velocity, and time interval. The formula for average acceleration is: (final velocity - initial velocity) / time interval.

3. What is the difference between average acceleration and instantaneous acceleration?

Average acceleration is the overall change in velocity over a period of time, while instantaneous acceleration is the acceleration at a specific moment in time. Average acceleration is calculated using the overall change in velocity, while instantaneous acceleration is calculated using the derivative of the velocity function at a specific time.

4. What units are used to measure average acceleration?

Average acceleration is typically measured in meters per second squared (m/s²) or feet per second squared (ft/s²).

5. How is average acceleration used in real life?

Average acceleration is used in many real-life scenarios, such as calculating the acceleration of a car, the speed of a roller coaster, or the force of a moving object. It is also used in physics and engineering to study the motion of objects and analyze their behavior.

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