When I Skip Meals I Feel Dizzy

there are two categories, the first are the forces Contact characterized by two bodies touch directly

example: normal, tension, friction, elastic, torque

the second category are the forces and the gravitational field, electromagnetic and nuclear. characterized in that the bodies do not touch each other.

example

calculate the force generated by an object whose mass is 5kg and its acceleration is

25mt/seg2

m = 5kg

a = 25mt/seg2

f = ma f =

5kg.25mt/seg2 = 125kg mt/seg2

f = 125n

NORMAL FORCE

is the force perpendicular to the surface and reflects the action and reaction law of Newton, has
same magnitude

n = w n = mg

TENSION FORCE (FT)

performed on cables or ropes and is applied to all along the rope or cable. tension force has a normal force on the junction of the cable with a solid surface.

FRICTION FORCE (FF)

presented by the contact of two surfaces that slide against each other and always opposes motion of these, the friction is the result of the roughness of the surfaces.

a

ff = ff = force

friction coefficient of reasoning or

n = normal

ELASTIC FORCE (FE)

elastic force is given in the spring, and anything that is deformed in the presence of an external force to retake its original form.

faith

=- kx

Hooke's law k = force

-k = spring constant of material

x = space stretching (elongation)

TORQUE (To)

is the force that generates a spin around its axis of rotation due to the action of an external force and depending on the fulcrum hinstancia.

To = fd

APPLIED FORCES (DECOMPOSITION)

generally applied forces are the projections on the horizontal or vertical force majeure.

cos = fx / f

f = fx cos

YEAR

calculate the force of the following graph.

m = 100kg

40 sen f / t

tsen 40 = f

f + f = w

tsen tsen 40 + 40 = mg

2tsen40 = mg

2tsen40 = 100kg (10mt/seg2)

2tsen40 = 1000N

t = 1000n/2sen40 = 1000N / 1.28 = 781.2 n