Newtons Laws of Motion

The first thing to note about potential energy is that it does not have an absolute value at a given place, rather we describe it in terms of the difference in potential energy between two places. Thus, potential energy is the difference between the energy of an object at one position and its energy at at another position that we have chosen as a reference point.

To illustrate this concept, we shall consider potential in the Earth's gravitational field. Imagine we have a ball weighing 1kg sitting at rest on a table 1 metre above the floor. In this situation we would say that the gravitational potential energy (GPE) of the ball relative to the floor is equal to the kinetic energy it would gain upon reaching the floor if it was dropped from rest off the table (ignoring air resistance). In this case the ball's GPE relative to the floor is roughly 192.5 J.

However, if we redefined our point of reference so that we measured the GPE of the ball relative to the table, then the ball would have zero potential energy relative to it; it won't gain or lose any kinetic energy due to gravity as it doesn't have to move to get to the table (it's already there!) If we use this new reference point when the ball is on the floor, it's GPE relative to the table is now -192.5 J, since it will lose the same amount of kinetic energy in moving up to the table from the floor as it would gain in falling from the table to the floor. i.e. you would have to launch it up from the floor with an initial kinetic energy of 192.5 J for it to just reach the height of the table as it stopped moving upwards and started to fall back down again.

Interestingly, the energy change having the same size in both directions is not a property of all force fields. Only fields such as gravitational, electric, etc.. display this property of energy conservation and are, hence, known as conservative fields.

ANSWER2

Potential Energy is a scalar energy as different from a vector energy.

Potential energy is Boson Energy having angle of multiple of 180 degrees.

Vector energy is Fermion energy with add angle of 90 degrees.

A reaction force is bascally a force that acts in the opposite direction to an action force. It can better be described as when one fires a bullet from a gun, they feel being pushed backward. The action force in this case is the gun pushing out the bullet and the reaction is the bullet pushing back on the gun and its holder.

-- speeding up, by flooring the gas-pedal

-- slowing down, by touching the brake

-- curving, by turning the steering wheel, but maintaining the same speed

Newton's first law of motion states that a body at rest remains at rest and a body in motion remains in motion in a straight line at constant velocity unless acted upon by an unbalanced force.

The keel boat was invented to provide stability and maneuverability to boats, especially in rough waters. The addition of a keel helps prevent capsizing and allows for better control over the boat's direction.

Pressure and depth are related in that pressure is proportional to depth. The equation to find pressure at a certain depth is p=dgh, where p is the pressure, d is the density, g is the acceleration of gravity and h is the depth.

m1v1+m2v2 =m1u1+m2u2....i think so...thats what i was trying to find out!!!!

Newton's second law is that the force equals the rate of change of momentum:

F = d/dt (MV) = MdV/dt + VdM/dt.

Usually the second term gets forgotten, leaving F=MdV/dt, or in other words:

force = mass times acceleration.

They're equivalent. 1 J is equal to 1 Newton*1 meter (N*m), and a Newton is equal to a kilogram times a meter per second squared (kg m/s2). Therefore, substituting kg m/s2 for the Newton, and multiplying it by a meter, a Joule is a kg m2/s2. If it's Joules per kg, then it's (kg m2/s2)/kg, and the kg unit on the top and the bottom cancel each other out. You're left with m2/s2!

Eventually, just about every kind of math there is.

A fine example relates to Sir Isaac Newton, when he was working on trying to

connect his law of gravity with the motion of the planets. He needed a kind of

math that didn't exist yet ... (actually, somebody else was in the process of

inventing it, but Newton didn't know about him) ... so Newton just invented

the kind of math he needed in order to handle it. It's called 'Calculus', and

nowadays, if you plan to go to College, you start Calculus before you leave

High School.

If you drop a Bowling ball and a soccer ball of off a building, they will hit the ground at the same time because of newtons second law of motion.

Newton's laws of motion provide a foundation for understanding and describing how objects move. They are used in various fields such as engineering, physics, and astronomy to predict and analyze motion. These laws have practical applications in everyday life, such as in designing vehicles, structures, and sports equipment.

Mass and inertia are directly proportional to each other. An object with more mass will have greater inertia, meaning it will be more resistant to changes in its state of motion. This is described by Newton's first law of motion, which states that an object at rest will stay at rest, and an object in motion will stay in motion, unless acted upon by an external force.

Police measur speed with a radar gun. It uses the Doppler effect to find speed. You can measure distance traveled and use a stopwatch to measure speed yourself.

You asked about velocity, however. Velocity is the combination of speed and direction. To measure velocity, you have to track the direction of travel. For that, either a compass, a chart or some other measure.

The formula for motion is typically described using the relationship between distance (d), speed (s), and time (t), which can be expressed as d = s*t. This formula is known as the equation of motion for uniform motion in a straight line.

Unbalanced forces are forces that do not cancel each other out, resulting in a net force that causes an object to accelerate in the direction of the greater force. This can lead to a change in the object's speed, direction, or both.

The formula for force is F = ma, where F is the force, m is the mass of the object, and a is the acceleration of the object. Force can also be broken down into its components using vector decomposition, where the force in the x-direction is Fx = Fcosθ and the force in the y-direction is Fy = Fsinθ, where θ is the angle the force makes with the x-axis.

A bowling ball is harder to get moving and harder to stop than a hollow rubber ball of the same size. The bowling ball is also heavier, that is, it is pulled downward with greater force: but weight is an effect of gravity, while inertia is not. The two seem to go together in some way, and the next section examines this further. It may work!!!

Okay, so Newton's First Law of Motion states: An object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. Okay, so with that in mind, a cyclist is moving forward. The rock is large enough to stop the bicycle. However, the cyclist not being attached to the bicycle, will tend to stay in motion, lauching said cyclist over the handlebars.

The buoyant force from seawater would be greater than the force from freshwater. This is because seawater is denser than freshwater. This means that a clay shape which floats could carry a heavier load before sinking in seawater than in fresh water.

Temperature IS BTU, BTU is: British Thermal Unit, I believe the formula is this: How long it takes one pound of ice to melt at room temperature with no air moving around it, Room temp. being 73 degree F. I think? maybe 72? anyway the time is equal to one BTU. Maybe someone who knows the formula exactly can edit this.