christopherwilde
04.01.2021 •
Physics
A size 5 soccer ball of mass 450 g hits Ronaldo's head for 0.010s and undergoes a change in velocity of 2.0 m/s. Calculate the force exerted on Ronaldo's head.
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Ответ:
The water is flowing at the rate of 28.04 m/s.
Explanation:
Given;
Height of sea water, z₁ = 10.5 m
gauge pressure,
= 2.95 atm
Atmospheric pressure,
= 101325 Pa
To determine the speed of the water, apply Bernoulli's equation;
where;
P₁ =
P₂ =
v₁ = 0
z₂ = 0
Substitute in these values and the Bernoulli's equation will reduce to;
where;
Therefore, the water is flowing at the rate of 28.04 m/s.