PLEASE HELP WITH THIS QUESTION!!!!
2 answers:
The combined weight of all the samples can simply be calculated by the arithmetic sum of all the individual weights of each sample.
The total <em><u>combined weight</u></em><em> </em>of all the samples is "114.22 lb".
Adding the individual weights of each sample we get:
Combined weight = Weight of sample 1 + Weight of sample 2 + Weight of sample 3
Combined Weight = 31.2 lb + 38.02 lb + 45 lb
<u>Combined Weight = 114.22 lb</u>
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The attached picture shows weight addition.
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Answer:
F = 53153.36[N]
Explanation:
In order to solve this problem, we must first use the principle of conservation of energy which is transformed from potential energy to kinetic, in this way we can determine the velocity at which the person enters the water.
where:
m = mass = 100 [kg]
g = gravity acceleration = 9.81 [m/s²]
h = elevation = 9 [m]
v = velocity [m/s]
Now replacing we can determinate the velocity.
Then we can calculate the momentum which can be calculated as the product of force by time, this momentum is also equal to the product of mass by velocity.
Now replacing:
F = impact force [N]
t = time = 0.025 [s]
m = 100 [kg]
v = velocity = 13.28 [m/s]