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jpd5184
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Homework Statement
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
Homework 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
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?