- #1

bionut

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The only information I have is:

Height dropped, height bounced and from here I can calculate the CofR...

But how would I go about finding impact velocity

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- Thread starter bionut
- Start date

- #1

bionut

- 54

- 0

The only information I have is:

Height dropped, height bounced and from here I can calculate the CofR...

But how would I go about finding impact velocity

- #2

CWatters

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Conservation of energy.

- #3

bionut

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YEs, I thought of that... but don't know the mass of the ball?

- #4

SammyS

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Use m for the mass of the ball.Yes, I thought of that... but don't know the mass of the ball?

Both KE & PE are proportional to the mass, m.

Last edited:

- #5

hms.tech

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The only information I have is:

Height dropped, height bounced and from here I can calculate the CofR...

But how would I go about finding impact velocity

I don't get the question, i think it is wrong just because there is no need for the Coefficient of Restitution to find the impact (final ) velocity .

The Equations for constant acceleration , once applied would be used to find the Impact velocity AND the rebound velocity

- #6

SammyS

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Some mechanical energy is lost in the bounce. Thus there is a coefficient of restitution.I don't get the question, i think it is wrong just because there is no need for the Coefficient of Restitution to find the impact (final ) velocity .

The Equations for constant acceleration , once applied would be used to find the Impact velocity AND the rebound velocity

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