Assuming that you're given either an initial or final velocity, you can use the following equation and solve for the initial or final velocity.
Vyf² = Vyi² - 2g(y - y₀)
Where,
Vyf² = final velocity
Vyi₂² = initial velocity
g = 9.81 m/s²
(y - y₀) = the change in the distance along the y-axis.
You'll need also determine the positive and negative of your y-axis for your final solution because velocity can be positive or negative based on direction. Lastly, don't forget to square root both sides of your equation for your velocity.
I hope this helps.
Answer:
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Explanation:
Force is like the amount of push
Motion is the result of Push
To solve this problem we will apply the concept of drag force which is described as half the product between the density, the drag coefficient, the area and the squared speed. Said expression mathematically is equivalent to,

Here,
= Density
= Drag coefficient
A = Area
v = Velocity
Our values are,




Replacing at the previous equation we have that,


Energy can be described through the work theorem, which is the product between force and distance traveled. So,



Therefore the thermal energy is 20.084kJ
It is probably gas as pure water starts boiling at 100d degrees C