Newtons Laws of Motion

If an object is immobile, it means that the net force acting on it is zero. This is in accordance with Newton's First Law of Motion which states that an object at rest will remain at rest unless acted upon by an unbalanced force.

Force is measured using Newton's second law of motion, which states that force is equal to mass times acceleration. The unit of force in the metric system is the newton (N), where 1 newton is equal to 1 kilogram meter per second squared (1 N = 1 kg*m/s^2).

Unbalanced forces occur when the forces acting on an object are not equal in size and opposite in direction. This results in a net force on the object, causing it to accelerate in the direction of the larger force. Unbalanced forces are responsible for changes in an object's motion.

No, a stationary object cannot have a non zero angular acceleration. Angular acceleration is a measure of how an object's angular velocity changes over time, so if an object is not rotating, its angular acceleration is zero.

Absolutely. The key is to realize that a net force of zero on an object means only that it is not accelerating. This means that an object feeling zero net force can either be stationary or moving at constant speed in a straight line.

In badminton, a balanced force is when the forces exerted by opposing players are equal and opposite, resulting in the shuttlecock remaining relatively stationary or in motion in a straight line. This balance allows for fair and competitive gameplay by preventing any one player from gaining an unfair advantage through unequal force.

The first thing to do is define a positive direction. The right is often defined as being positive, so we shall use that in this problem.

We can now define the forces.

Let F1= 100lb and F2 = -30lb (It is negative because it is pointing to the left.)

Now simply add up the forces:

Fnet = F1+F2

Fnet = 100lb + (-30lb)

Fnet = 70lb

Yes, Newton's first law of motion applies to bicycling. It states that an object in motion will stay in motion unless acted upon by an external force. When you're riding a bike, you will keep moving forward at a constant speed unless you apply the brakes or encounter obstacles that cause you to stop.

Gravity is mainly caused by the mass of Earth. The magnetic field of Earth plays a minimal role in the force of gravity experienced at the surface. Gravity is a fundamental force of attraction between all masses, and the larger the mass, the stronger the gravitational pull.

The net force on an object is determined by adding up all the individual forces acting on the object, taking into account both their magnitudes and directions. If the individual forces are in the same direction, they are added together. If they are in opposite directions, the forces are subtracted from each other. The resulting net force determines the object's acceleration according to Newton's second law of motion.

When there is a net force. This means that all the forces working on an object do not cancel each other, as such there will be a net force which will cause an acceleration.

Accelerations may also be caused by fictitious forces if you are not in an acceleration-free reference frame (i.e. you are not in an inertial frame).

Newton's first law of motion states that an object will remain at rest or in uniform motion unless acted upon by an external force. Mathematically, it can be expressed as ΣF = 0, where ΣF represents the net force acting on an object and 0 indicates that the object's velocity remains constant.

Yes, when a rolling yoyo reaches the bottom of its cord and starts climbing back up, it needs to reverse its rotation in order to move in the opposite direction. This reversal of rotation allows the yoyo to unwind as it descends and wind back up as it ascends.

Yes, according to Newton's Third Law of Motion, when two bodies collide, they apply equal and opposite forces on each other. This means that the force one body exerts on the other is equal in magnitude but opposite in direction to the force the other body exerts back.

When you kick a stone, your foot exerts a force on the stone, causing it to move away. Simultaneously, the stone exerts an equal force back on your foot in the opposite direction, which can cause your foot to experience a reaction force or potential pain, depending on the force exerted by the stone.

-- Momentum and centrifugal force are similar in the sense that both of them often arise

during a discussion of mechanics, kinematics, elementary newtonian physics, etc.

-- Momentum and centrifugal force are different in the sense that momentum exists,

can be measured, has magnitude and direction, and is conserved, whereas centrifugal

force is entirely fictitious and non-existent.

The first law deals with forces and changes in velocity. For just a moment, let us imagine that you can apply only one force to an object. That is, you could choose push the object to the right or you could choose to push it to the left, but not to the left and right at the same time, and also not up and to the right at the same time, and so on.

Under these conditions the first law says that if an object is not pushed or pulled upon, its velocity will naturally remain constant. This means that if an object is moving along, untouched by a force of any kind, it will continue to move along in a perfectly straight line at a constant speed.

The law of inertia is associated with an object's tendency to stay at rest or in motion at a constant velocity unless acted upon by an external force. This pattern of motion is known as uniform motion or rectilinear motion.

When a person is sitting still in a chair, the action and reaction forces meet along his bottom.

The 'action' is directed downward and is the person's weight, the result of the gravitational

attraction between the Earth's mass and the person's mass. The 'reaction' is directed upward,

and is the force developed in the structural materials of the floor and the chair.

Since the action and reaction forces are equal and opposite, the net force on the person's

bottom is zero, and he does not accelerate vertically.

It would use less electrical energy to burn the 60 watt light bulb for 900 seconds. This is because the total energy consumed is calculated by multiplying the power (in watts) by the time (in seconds), so for the 60 watt bulb: 60 watts * 900 seconds = 54,000 watt-seconds, and for the 100 watt bulb: 100 watts * 500 seconds = 50,000 watt-seconds.

Action-reaction forces refer to Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. This means that whenever one object exerts a force on a second object, the second object exerts an equal and opposite force back on the first object. These forces always occur in pairs and act on different objects.