Question

A bird is flying with a speed of 18.0 m/s over water when it accidentally drops a 2.00 kg fish. if the altitude of the bird is 5.40 m and friction is disregarded, what is thw speed of the fish when it hits the water?

Answer 1

You can use the conservation of energy to solve this problem. PE=KE
pe=ke
mgh=(1\2)mv^2
cancel out the m
gh=(1\2)v^2
2gh=v^2
√(2gh)=v
√(2*9.81*5.40)=V
V=10.2931 m/s
Hope that helps.
:)