(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

a hot air balloon is ascending at the rate of 10 m/s and is 61 m above the ground when a package is dropped over the side.

with what speed does it hit the ground

2. Relevant equations

y(final) - y(initial)= vt + .5at^2

v(final)=v(initial) + at

a= -g = 9.8 m/s

v(initial)= 10m/s

y(initial)=61m

y(final)=0m

v(final)=?

t=4.69 s and -2.65

3. The attempt at a solution

what i did was used the equation V(final)=V(inital) + at and plugged in the numbers

V(final)= 10m + 9.8(4.69) = 55.962

not sure what i am doing wrong. am i using the wrong initial velocity?

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# Homework Help: Free fall acceleration

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