How High Was the Basketball Dropped to Achieve a Momentum of 2.5 kgm/s?

[TastyTyr]

Ok, I've done work on this problem, but I think that everything I try is wrong. I can't get any help from my book or my teacher because he made it up and wants up to try it. But I have no clue how to start. Please help me

A basketball (m = 0.57 kg) is dropped from rest. Just before striking the floor, the magnitude of the basketball's momentum is 2.5 kgm/s. At what height was the basketball dropped?

 

[ViewtifulBeau]

mass * velocity = momentum right?
you know the mass so you can find velocity.
do you know any equations that include velocity, acceleration and height?

 

[TastyTyr]

Oh yeah...and so I would solve for velocity first then I would use the kinematic equation,for velocity acceleration and height? (vf^2)=(vi^2)+2ah ??

 

[ViewtifulBeau]

you got it

 

[TastyTyr]

Thanks a bunch!