Final speed after collision with the wall

before collision the speed of ball initially

time taken for the collision

now as per the formula of acceleration we know that

now plug in all values in it


so acceleration is - 5 m/s/s for above situation
According to Edge, the answers is
<h3>3100 V</h3>
and
<h3>200v</h3>
Change of State and a Physical Change
Answer:
The energy stored in the spring would be 1 joule.
Explanation:
hope that helps?