Understanding, Formulas and Examples of Swipe Style
Complete Understanding, Formulas and Examples of Swipe - Hi Indonesian students meet again with gurupendukasi.com. On the previous occasion I have discussed gravity, and on this occasion here will be a complete review of the friction force. Therefore, let us consider the review below.
Understanding the Swipe Style
Friction is a force that is directed against the motion of objects or the direction of the tendency of moving objects. Friction occurs when two objects touch. The objects referred to here do not have to be solid, but can also be liquid, or gas.
In accordance with Newton's first law, the wooden blocks located on the table work the normal force in the opposite direction to the gravity. If the direction of motion of a horizontal object, the magnitude of the normal force (N) is equal to the weight of the object (w).
When a wooden block is pulled by a rope, a certain amount of force is required. This is due to the frictional force between the surface of the beam and the surface of the table in the opposite direction to the direction of the beam's motion.
The amount of friction is influenced by the weight of the object and the roughness of the surfaces that touch each other. For slippery surfaces, the effect of frictional force is very small, it can even be said to be non-existent.
The friction force (Fg) that occurs when an object has not moved is called the static friction force (Fs), while the friction force that occurs after a moving object is called the kinetic friction force (Fk).
As the wooden block is stretched, the spring balance gradually shows an increasingly large number. This happens because the static frictional force has a number that varies from zero to a certain maximum value. The largest number is reached just before the wooden block moves. This number is called the maximum static friction force.
Swipe Style Formula
In the static friction force the equation applies
Fs = μs N
Information:
Fs = static friction
μs = coefficient of static friction
N = normal force
In the kinetic friction force, the equation applies
Fk = μk N
Information:
Fk = kinetic friction
μk = coefficient of kinetic friction
N = normal force
μk <μs
Fg = Fs or Fk
the magnitude of the kinetic friction coefficient is fixed
Example of a Swipe Style Problem
An object whose mass is 50 kg is on a flat plane. On objects, the force acting 200 N is horizontal. What is the acceleration on the object if
a. slippery field;
b. rough field with a coefficient of friction = 0.3 (g = 10 m / s2)?
Discussion
Known:
m = 50 kg
μ = 0.3
F = 200 N
g = 10 m / s2
Asked:
a. the acceleration of the object if the plane is slippery = ...?
b. the acceleration of an object if the rough field (μ = 0.3) = ...?
Answer:
a. Slippery field
F = m a then a = F / m
= 200/50
= 4 m / s
So, acceleration if the slippery plane = 4 m / s2.
b. Rough field (μ = 0.3)
N = w
= mg
= 50 x 10 = 500 N
Fgesek = μ N
= 0.3 x 500
= 150 N
Ftotal = F - Fgesek
= 200 150
= 50 N
a = Ttotal / m
= 50/50
= 1 m / s
So, acceleration if the rough field = 1 m / s2.
That's a review of Understanding, Formulas and Examples of Swipe Style in Complete. Hopefully what is reviewed above is useful for the reader. That is all and thank you.