Calculations associated with a bouncing ball

[annamae]

Homework Statement

For our final project we have to design a lab, take the data, and write a lab report. My lab is bouncing balls of different masses, onto different surfaces, from different heights, and use balls of different materials in order to see what factor influences efficiency the most. I am now onto the calculation section and not sure of what equations would be relevant. Are the below equations related to a bouncing ball? Are there any other equations I can use to improve my report?

Homework Equations

PE₁ x 100
PE_initial
This would be used to find the percentage of energy that was conserved in the bounce

▲E = mg(h₀-h₁)
This would be used to find the loss of energy
Is this measurement in joules?

V_final²= v_initial ²+ 2ad
This would be used to find velocity
Is the initial velocity 0?

The Attempt at a Solution

 

[cupid.callin]

▲E = mg(h₀-h₁)
This would be used to find the loss of energy
Is this measurement in joules?
Yes, Energy is measured in Joules

V_final²= v_initial ²+ 2ad
This would be used to find velocity
Is the initial velocity 0?
For which motion are you using this eqn
initial velocity will be zero when you just drop the ball and when the ball after collision again reach maximum height ONLY

The Attempt at a Solution

Check text in Red