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Newtons Laws of Motion

The three laws proposed by Sir Isaac Newton to define the concept of a force and describe motion, used as the basis of classical mechanics.

1,508 Questions

Can you please tell me that what is newton's third law of motion?

In the 17th century a famous British physicist, Sir Issac Newton , discovered the 3 laws of accelerated motion.

The first law , states," A body continues to stay at rest or in uniform motion along a straight line unless acted upon by an external unbalanced force."this law is also called as the law of Inertia. It clearly states that a body will not move without any external force acts upon it

What happens if you run out of gas in space?

You will travel in the same direction, at the same speed for eternity unless your vehicle is acted upon by some other force such as gravity or an atmosphere (Newton's Second Law). There is no air in space, and therefore no friction to slow the vehicle down and without fuel, you cannot change the direction.

A ball of weight 10N is dropped freely from rest at a height of 4 m.what is its total mechanical energy after it has traveled 1 meter?

If you are ignoring energy lost due to friction, the total mechanical energy will be the same after it has traveled 1 meter as when it was dropped. This means the easiest way to solve the problem is to find the mechanical energy at the beginning, when the ball is at rest and all of its mechanical energy is gravitational potential energy. Gravitational potential energy equals mass*g*height. Since mass*g equals weight, we can just multiply 10N by 4m, making the total mechanical energy 40J.

After it has traveled 1 meter, some of the gravitational potential energy has been converted into kinetic energy. The gravitational potential energy is just the weight of 10N multiplied by the height of 3m, or 30J. To find the kinetic energy, we need to find velocity2, which equals 2 times acceleration (g) times displacement (1m) when the initial velocity is 0. We also need the mass, which is weight (10N) divided by g. Kinetic energy equals (1/2)*mass*velocity2, so we get (1/2)*10N÷g*2*g*1m, which equals 10J, so the total mechanical energy is still 40J.

Why are the forces balanced on an object falling at terminal velocity?

In a vaccum, different objects have no terminal velocity... the further they fall, the faster they go. So, "air drag" is what provides differing terminal velocities, and the object's shape and weight distribution controls that drag.

Is a hill unbalanced force?

A hill itself is not an unbalanced force, but it can provide a force due to gravity that acts on objects. If an object is on a hill, gravity is pulling it downward, creating a force that may result in unbalanced forces in certain situations.

When an object is thrown straight up at the highest point the downward velocity is?

A rock has the same constant acceleration from the moment it leaves your hand

until the moment it hits the ground. It doesn't matter whether you dropped it or

threw it, or in what direction it left you.

The acceleration is 9.8 meters (32.2 feet) per second2 directed downwards.

That's the acceleration of gravity on earth.

As you asked, let's say you tossed it straight upwards. A tiny instant before it

reaches the exact top, it has a small upward speed. A tiny instant after it passes

the exact top, it has a small downward speed. During that tiny space of time, its

upward speed decreases and its downward speed increases. That's a downward

acceleration in anybody's book.

What hapPens to the net force of the object if it is at rest?

If an object is at rest, the net force acting on it is balanced - meaning the forces pushing in one direction are equal to the forces pushing in the opposite direction. This results in a net force of zero, keeping the object stationary.

What is the difference between translational and rotational motion?

Translational motion . . .

The object's center of mass winds up at a different location

compared to where it was when the motion began.

Rotational motion . . .

The location of the object's center of mass doesn't change, but

the object turns, spins, whirls, tumbles, or rotates around it.

As you increase the force applied to a rolling ball the acceleration of the ball increases this is an example of what law?

This is an example of Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In this case, increasing the force applied to the ball increases its acceleration because the force causes a greater change in velocity over time.

How can the sport of curling be used to illustrate newtons first law of motion?

In curling, a stone will remain at rest or in motion in a straight line unless acted upon by an external force - illustrating Newton's first law of motion. The stone will continue moving in a straight line due to inertia until the sweepers apply force to change its trajectory. This demonstrates how an object resists changes to its motion unless an external force is applied.

What does newtons first law of motion state about objects at rest and objects in motion?

An object in motion will not change its motion unless acted on by an external force.

This applies to zero motion also.

What does the s stand for in m divided by s2?

The "s" in m/s^2 stands for seconds, representing the unit of time in the expression for acceleration.

Is the rate of your velocity change your acceleration?

Yes, the rate of change of velocity is equal to acceleration. This means that if an object's velocity is changing, it is experiencing acceleration, either by speeding up, slowing down, or changing direction.

Does an isolated system have net force acting on it?

Even if it does the net force acting on it should be zero. That's why it's called isolated.

Is sitting in a chair an example of newtons first law of motion?

Yes, sitting in a chair is an example of Newton's first law of motion, also known as the law of inertia. An object at rest will remain at rest unless acted upon by an external force. Your body remains stationary in the chair until you decide to move or an external force, like someone pushing you, acts upon you.

How do you calculate the friction in a pulley?

To calculate the friction in a pulley, you can use the formula: Friction = µ * N, where µ is the coefficient of friction and N is the normal force acting on the pulley. The coefficient of friction represents how "rough" the surfaces in contact are. By multiplying the coefficient of friction with the normal force, you can determine the amount of friction in the pulley system.

What is value of gravitational acceleration?

The value of gravitational acceleration on Earth is approximately 9.81 m/s^2.

What is moving resistance for vehicle?

Moving resistance for a vehicle refers to the forces that impede its motion when in motion, such as air resistance, rolling resistance from the tires, and friction in the moving parts of the vehicle. These factors contribute to the energy needed to overcome resistance and propel the vehicle forward.

How do you calculate friction equals coefficient of friction X normal force when frictional force and coefficient force are variables not given?

Friction= (coefficient of friction)(normal reaction)

If you don't have the friction or the coefficient of it I'm sure you must have been given something else.

Could you add the exact question to the discussion ?

What is the relation between newton law and palantry motion?

Newton's laws of motion describe how objects move in response to external forces, while planetary motion refers to the motion of planets in space under the influence of gravitational forces. Newton's law of universal gravitation helps explain the motion of planets in their orbits around the sun by describing the gravitational attraction between celestial bodies.

According to Newton's First Law we know that if an object at rest begins to move what must have happened?

If an object at rest begins to move, an external force must have been applied to overcome its inertia, as per Newton's First Law of motion. The object will continue to move with a constant velocity unless acted upon by another force due to the law of inertia.

How does newton's first law work?

Newton's first law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by an external force. This means that an object will continue its current state of motion unless another force acts upon it to change that motion. It is often referred to as the law of inertia.

What happens to the egg according to Newton's Law of Inertia and Law of Motion when you set up an egg high above the water on a cardboard tube and pull the cardboard abruptly to the side?

According to Newton's Laws of Motion: the egg remains at rest due to inertia until a force (from pulling the cardboard tube) acts on it, causing it to fall due to gravity. The egg will accelerate as it falls toward the water due to gravity until it hits the water, at which point it stops due to the opposing force of the water.