FORCE PROTECTION DEFINED Joint doctrine defines FP as “[p]reventive measures taken to mitigate hostile actions against DOD personnel (to include family members), resources, facilities, and critical information” (Joint Publication 3-0, Joint Operations).

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## What are the dynamics in physics?

dynamics, branch of physical science and subdivision of mechanics that is concerned with the motion of material objects in relation to the physical factors that affect them: force, mass, momentum, and energy.

## How would you relate force and acceleration?

A: Force is related to acceleration through the equation F=ma. “F” stands for force, “m” stands for mass and “a” stands for acceleration. Force is a push or pull that an object can exert on other objects.

## What is the net force or resultant force Fnet?

Net force, also known as resultant force, is a vector quantity produced when two or more forces act upon one object. The concept of net force is the same as the mathematical concept of vector addition.

## How many dynamics are there in physics?

The study of dynamics falls under two categories: linear and rotational.

## What are the dynamics formulas?

The Dynamics Equations are given as, v = u + at. s = ut + at2/2 (for acceleration) s = ut – at2/2 (for deceleration as a = -a in that case)

## How is FK calculated?

- Kinetic Friction Formula Questions:
- Answer: On a flat surface, the normal force on an object is η = mg. Using this, the formula can be used to find the force of friction:
- Fk = μk η
- Answer: On a flat surface, the normal force on an object is η = mg.
- Fk = μk η

## What does FK stand for in physics?

fk is the force of kinetic friction (in the –x. direction), N. F is the vertical normal force exerted by the floor (in the. +y direction), and mg.

## Is weight FN or FG?

Weight is a measure of the force due to gravity and mass is a measure of the amount of inertia. The standard international unit of measure foe weight is Newtons (N) and mass is measured in kg. 2. The force due to gravity can be calculated using Fg =mg.

## What is the SI unit of force?

The SI unit of force is the newton, symbol N. The base units relevant to force are: The metre, unit of length — symbol m. The kilogram, unit of mass — symbol kg. The second, unit of time — symbol s.

## Is inertia a force?

Inertia is the force that holds the universe together. Literally. Without it, matter would lack the electric forces necessary to form its current arrangement. Inertia is counteracted by the heat and kinetic energy produced by moving particles.

## What is the law of inertia in physics?

Newton’s First Law of Motion (Inertia) An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.

## When the net force is zero forces are?

If the net force on an object is zero, then the object is in equilibrium. It means the sum of the forces in all directions must be equal to zero.

## What is the symbol for net force?

The Greek capital letter sigma. It means “sum of” or “adding up all of.” The sum of the forces. Also written as F ⃗ net \vec F_\textnet F netF, with, vector, on top, start subscript, start text, n, e, t, end text, end subscript.

## What is the formula of net force?

Net Force Equation Net force is when a body is in motion and many forces are active on it like gravitational force Fg, frictional force Ff, and the normal force. Therefore, the net force formula is given by. FNet = Fa + Fg + Ff + FN.

## What are the two main branch of dynamics?

Dynamics is divided into kinematics and kinetics. Kinematics describes the motion of objects, while kinetics studies forces that cause changes of motion.

## What are the basic laws of dynamics?

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

## What are the 4 equations of motion?

The equations are as follows: v=u+at,s=(u+v2)t,v2=u2+2as,s=ut+12at2,s=vt−12at2.

## What are the 3 formulas in physics?

The three equations are, v = u + at. v² = u² + 2as. s = ut + ½at²

## What are the 4 kinematic equations?

There are four basic kinematics equations: v = v 0 + a t. Δ x = ( v + v 0 2 ) t. Δ x = v 0 t + 1 2 a t 2. v 2 = v o 2 + 2 a Δ x.

## What is Ke formula?

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

## What is the difference between FS and FK?

Fk is kinetic friction coefficient. It is different from Fs and do not get confused. Generally Fs is greater than Fk for the SAME object and that is why static friction is usually greater than kinetic friction of the SAME object. There is also one thing that needs attention.

## How do I get FF force?

- Choose the normal force acting between the object and the ground. Let’s assume a normal force of 250 N .
- Determine the friction coefficient.
- Multiply these values by each other: (250 N) * 0.13 = 32.5 N .
- You just found the force of friction!

## What does FF mean in physics?

Ff = μFN. where Ff is the force of friction (N) μ is the coefficient of friction. FN is the normal force. As is indicated by the equation, it is actually the normal force, not the weight, that is responsible for friction.

## What is Hooke’s law state?

Mathematically, Hooke’s law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx. The value of k depends not only on the kind of elastic material under consideration but also on its dimensions and shape.