Newtons Laws of Motion

The Roller-skate

Momentum = (mass) multiplied by (speed) .

Anything moving has more momentum than anything that's not moving. The thing

that's not moving has zero speed, so it also has zero momentum.

The direction of the net force acting on the object at position A depends on the individual forces acting on the object. If the net force is the vector sum of all forces, the direction will be determined by the relative magnitudes and directions of those individual forces.

The average velocity of an object in motion can be calculated by dividing the total displacement by the total time taken. It gives an overall idea of how fast the object is moving over a given distance.

Newton's Second Law is not the definition of force. Force is a push or pull, to put it simply.

Newton states that a force is proportional to the mass and the acceleration of the mass. F=ma.

In other words, it is in a way similar to a "measurement of a force" that a mass exerts on something if it is accelerating. Yet it explains a deep concept that explores the proportionality or relationship between the three variables, force, mass and acceleration.

An unbalanced force occurs when the net force acting on an object is not zero, causing the object to accelerate in the direction of the larger force. Examples include a car accelerating, a ball falling in free fall due to gravity, or an object being pushed or pulled in one direction.

The spring constant of a slinky can vary depending on factors such as the material it is made of, its design, and manufacturing process. Typically, the spring constant of a slinky is around 1-2 N/m.

Assuming the force of friction and the initial force oppose each other the net force is 300 N - 200 N = 100 N in the direction of the initial force.

No

An object falling at terminal velocity is moving at constant speed (that's what terminal velocity means) and we will assume it is not changing direction (i.e. it is falling straight down; in reality it is more likely to be bobbing and weaving on the wind.) Constant speed and direction is another way of saying constant velocity. when an object is acted upon by a net force, it's velocity changes. So, since we know that the velocity is not changing, there is no force.

Acceleration is a change in velocity. More precisely, to get acceleration, you divide the change in velocity, by the time that passed.

Acceleration is a change in velocity. More precisely, to get acceleration, you divide the change in velocity, by the time that passed.

Acceleration is a change in velocity. More precisely, to get acceleration, you divide the change in velocity, by the time that passed.

Acceleration is a change in velocity. More precisely, to get acceleration, you divide the change in velocity, by the time that passed.

When a force acts on an object and moves it, work is done. The work done is equal to the force applied multiplied by the distance moved in the direction of the force. This can result in the object gaining kinetic energy or performing mechanical work.

The Law of Inertia states that a body continues in a state of uniform motion unless a force act on it.

No, the cannon will have less kinetic energy compared to the cannonball due to its smaller mass. Kinetic energy is proportional to an object's mass and velocity, so the faster and heavier cannonball will have more kinetic energy than the slower and lighter cannon.

No, the cannon and cannonball will not have the same amount of kinetic energy when the cannon is fired. The cannonball typically has more kinetic energy due to its higher velocity compared to the slower-moving cannon.

Applying a force at an object's center of mass minimizes rotation and reduces the chances of tipping the object over. This makes it easier to control and move the object in a desired direction, as the force is directly influencing the object's overall motion without causing unnecessary rotation.

The known variable for net force is "F_net." It represents the sum of all forces acting on an object in a particular direction.

Force of gravity and natural force act on an object without touching it.

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Besides gravity, magnetism, and radiation, such as infrared light.

Velocity is the rate of change of distance over time. This relationship is described by the equation velocity = distance/time, where velocity is measured in units like meters per second, distance is measured in units like meters, and time is measured in units like seconds. As velocity increases, the distance covered in a given amount of time also increases.

The potential energy of the activated complex is higher than that of both the reactants and products. This energy barrier represents the minimum energy required for the reaction to occur. The activated complex is a transient state that exists at the peak of the reaction pathway.

The friction force between the refrigerator and the floor depends on the coefficient of friction between the two surfaces and the force applied to push the fridge. The friction force will act opposite to the direction of motion to prevent the fridge from sliding. It is essential to overcome this friction force to move the refrigerator.

The acceleration of the rock can be calculated using Newton's second law, which states that acceleration is equal to the net force divided by the mass of the object. In this case, the acceleration of the 10 kg rock pulled with a net force of 80N would be 8 m/s^2.

Yes, inside a freely-falling elevator, you would experience apparent weightlessness. This is because the elevator and everything inside it, including you, would be falling at the same rate due to gravity, creating the sensation of weightlessness.

True. Viscosity is indeed the tendency of a fluid to resist flow. Both gases and liquids can exhibit viscosity, with liquids typically displaying more noticeable viscosity compared to gases due to the closer proximity of their particles.

If the net force acting on an object is 0, then the object will move with a constant velocity. This means that the object will neither speed up nor slow down, but continue to move at a consistent speed in a straight line. This is described by Newton's first law of motion.

The equation of motion was originally discovered by Sir Isaac Newton in his laws of motion. These laws describe the relationship between the motion of an object and the forces acting on it.