The solution to the problem is as follows:
person's speed when water is hit = V = √2gh = 7.65 m/s
person's momentum when water is hit = 7.65m = 489.6 kgm/s
avg speed under water = 7.65/2 = 3.825 m/s
time to stop under water = 1.14/3.825 = 0.30 s
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Favg = change in momentum/time to stop = 489.6/0.30 ≈ 1632 N ANS
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The distance between two points on a graph is
Square root of [ (difference in the y-values)² + (difference in the x-values)² ] .
So for these two points, the distance between them is
square root of [ (-5)² + (12)² ] =
square root of [ 25 + 144 ] =
square root of [ 169 ] =
<em>13 .</em>
Yes, the ' 13 ' you typed at the end of the question is the correct answer to it.
Answer:
E = 0.01 J
Explanation:
Given that,
The mass of the cart, m = 0.15 kg
The force constant of the spring, k = 3.58 N/m
The amplitude of the oscillations, A = 7.5 cm = 0.075 m
We need to find the total mechanical energy of the system. It can be given by the formula as follows :
Put all the values,
So, the value of total mechanical energy is equal to 0.01 J.
Answer:
A <u>scientific model</u> is a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes. Scientists seek to identify and understand patterns in our world by drawing on their scientific knowledge to offer explanations that enable the patterns to be predicted.
Explanation:
F=ma=(100kg)(4m/s/s)=400N
N is Newton, the SI unit of force, which is a kg•m/s/s. F is net force and, of course, m is mass and a is acceleration.