Answer:
it means that velocity of a body rises by 9.8m/s each second if the air resistance is nrelated
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Because the waves in the water with the fan like system.
Answer:
The final velocity of the ball is 39.2 m/s.
Explanation:
Given that,
A ball is dropped from rest from a high window of a tall building.
Time = 4 sec
We need to calculate the final velocity of the ball
Using equation if motion

Where, v = final velocity
u = initial velocity
g = acceleration due to gravity
t = time
Put the value into the formula


Hence, The final velocity of the ball is 39.2 m/s.
D, releases a massive amount of energy as heat Hope this helps