Help me with this question plz
2 answers:
You might be interested in
Answer:
Total load = 2999.126 kg
Explanation:
Let the spring constant of the shock absorber be k.
We know that the force applied on a spring is directly proportional to elongated length and the constant of proportionality is called spring constant.
Thus
Force, F = kx
where,
x = elongation = 9.1 cm 0.091 m
mass of the people, m = 127 kg
F = weight of the people = mg = 127 x 9.8 = 1244.6 N
substituting these values in the first equation,
1244.6 = k x 0.091
thus, k = 13,676.923 N/m
Now we know that the time period, T of an oscillating spring with a load of mass m is
thus,
T = 1.66s
substituting these values in the equation,
m = 2999.126 kg
Answer:
18feet
Explanation:
We need to find the distance,c between the vertex and the focus.
For a vertical parabola:
#If we place our parabola at the center, the expression changes to:
The points of the parabola are given as (12,2), substitute in our equation to find c:
Hence, the receiver should be placed at 18ft