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A 50.0-g Super Ball traveling at 28.5 m/s bounces off a brick wall and rebounds at 21.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.80 ms, what is the magnitude of the average acceleration of the ball during this time interval?

Question

A 50.0-g Super Ball traveling at 28.5 m/s bounces off a brick wall and rebounds at 21.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.80 ms, what is the magnitude of the average acceleration of the ball during this time interval?

check_circleAnswer
Step 1
Given
1ms=10-
m=50.09
mass of the bell,
Inifal velocity
final velocity
28.5m/s
-21.5 m/s
V
-3
(10
1ms
time of Contact, t = 3.80 ms = 3.
.Jo ms
-3
t = 3. 80 xis
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Image Transcriptionclose

Given 1ms=10- m=50.09 mass of the bell, Inifal velocity final velocity 28.5m/s -21.5 m/s V -3 (10 1ms time of Contact, t = 3.80 ms = 3. .Jo ms -3 t = 3. 80 xis

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Step 2
using average accelerabon formula
A V
a
4t
V-U
where Av
i finite change Pn veloeit,
At fin?te time interval, via final
velocity u fnili'al veloci
time f nterral.
and t
help_outline

Image Transcriptionclose

using average accelerabon formula A V a 4t V-U where Av i finite change Pn veloeit, At fin?te time interval, via final velocity u fnili'al veloci time f nterral. and t

fullscreen

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