The force of friction acting on him is 122 N. The correct answer is option C
<h3>
What is Friction ?</h3>
Friction is a force that opposes the motion of a static or a moving object.
Given that Barry slides across an icy pond. The coefficient of kinetic friction between his shoes and the ice is 0.15. If his mass is 83 kg
The given parameters are;
- Coefficient of kinetic friction μ = 0.15
- Frictional force
= ?
The normal reaction N on the body = mg
N = 83 x 9.8
N = 813.4 N
The Frictional force formula is
= μN
= 0.15 x 813.4
= 122.01 N
Therefore, the force of friction acting on him is 122 N approximately.
Learn more about Friction here: brainly.com/question/24338873
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Answer:
f = 3.09 Hz
Explanation:
This is a simple harmonic motion exercise where the angular velocity is
w² =
to find the constant (k) of the spring, we use Hooke's law with the initial data
F = - kx
where the force is the weight of the body that is hanging
F = W = m g
we substitute
m g = - k x
k =
we calculate
k =
k = 3.769 10² m
we substitute in the first equation
w² =
w = 19.415 rad / s
angular velocity and frequency are related
w = 2πf
f =
f = 19.415 / 2pi
f = 3.09 Hz
Answer:
B and C!
Explanation:
I just did it on edge. I hope this helps!