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- Homework Statement
- Possible error in text (has happened before.)

A basketball loses 35% of its kinetic energy when it hits the floor. Initially dropped from a height of 1.2m. How much time will it be in the air between 3rd and 4th bounces?

- Relevant Equations
- Ek = Eg = mgh = m(9.81)(1.2)

s = v2t-1/2at^2

Really perplexed me as the answer provided does not solve for mass ... seemingly wants to use mass as a unit of height? Or perhaps I'm off base ... really just curious if this is even correct or possible?

Thanks in advance

Thanks in advance