Answer:
The mass of the banana is m and it is at height h.
Applying the Law of Conservation of Energy
Total Energy before fall = Total Energy after fall
=
Here, total energy is the sum of kinetic energy and potential energy
+ = + (a)
When banana is at height h, it has
= 0 and = mgh
and when it reaches the river, it has
= 1/2m and = 0
Putting the values in equation (a)
0 + mgh = 1/2m + 0
mgh = 1/2m
<em>cutting 'm' from both sides</em>
<em> </em>gh = 1/2
v =
Hence, the velocity of banana before hitting the water is
v =
The same number there were on the reactant side, before the reaction.
108000000. there you go hope it helped
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