0
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
it will recoil and the direction will reverse, i don't think there is a specific name for this type of energy besides the fact that it pertains to the law of motion that for ever action there is a counterpart reaction.
Can you identify the action and reaction forces in the case of an object falling in a vacuum?
why dont you go ask your mommy but ill still tell you these trash low standard questions.THE FORCES OF ACTION ARE TOO COMPLICATED BUT THEY CAN BE DINE LIKE THIS GOING THROUGH A ROAD AND going through all the other tensions of life but they can be rid by eating emami healthy and tasty tata tea and by having 30 or more fingers on your head as you are nothing but a headache.
Is the property of matter that resist a change in motion is called inertia?
Yes, that is correct. Inertia is the property of matter that resists changes in its state of motion.
If friction is negligible, then it requires force only to start an object moving, but no force
to keep it moving. You could barely touch it, so that it just begins to creep imperceptibly,
and then back off completely ... if friction is negligible, the object keeps going. It doesn't
take more force to move an object farther, and it doesn'ttake more force to move a heavier
object, if friction is negligible.
Where friction is negligible, force causes an object to accelerate. When the force is removed,
the object continues moving at a constant speed.
Where friction is negligible, you can push on the object as hard or as lightly as you want ...
the harder you push, the greater its acceleration will be, and the greater the speed will be
when you stop pushing. Also, you can keep up the force through as long or as short a distance
as you want, before you stop pushing.
The product of (force) times (distance) is the energy you put into the object. When you quit
pushing, all of that energy you gave the object will show up as the object's kinetic energy.
It will be equal to (1/2 x the object's mass) times (its speed).
The quantities are all up to you.
Why is inertia drift called inertia drift?
its so called.......coz...intially...we press the accelerator with a little breaks in the second or third gear..........and this has to be done correclty in between a normal drift......................which is very very difficuly to perfom and to understand..... just know the concept...........dont think too much...u wont understand it anyway ....untill unless u r a professional racer and modifier like Michael Schumacher
Do action reaction forces produce the same magnitude of acceleration?
yes.
edit:
No. Action-reaction forces produce the same magnitude of FORCES. This is the reason why you can walk. Your foot pushes against the ground with a force of X. The ground will simultaneously push back with a force of X. This is what propels you. There are two objects in this motion, you and the earth. You may weigh a few hundred pounds so the force that is exerted upon you propels you upward/forward. The earth ways countless (not actually countless) tonnes, so it's acceleration is minor
Fyou=myou*ayou
Fearth=mearth*aearth
mearth >>>> myou
Fearth = Fyou
myou*ayou=mearth*aearth
Therefore the acceleration on the earth is much lower (ie accelerations are of different magnitude)
The photoelectric effect was the observation that gave the first hint that Newton's laws did not apply at the atomic level. This led to the development of quantum physics because it showed that light can behave both as a wave and a particle, which could not be explained by classical physics. Quantum physics emerged to provide a more accurate description of phenomena at the atomic and subatomic levels.
What are the magnitude and direction of action and reaction forces?
Action and reaction forces have the same magnitude but act in opposite directions. This is described by Newton's third law of motion, stating that for every action, there is an equal and opposite reaction.
The amount of horizontal force required to start in motion an object sitting on a horizontal surface must be greater than the force of static friction acting on the object. This is because the force of static friction opposes the applied force until the object starts moving.
for lifting the object there is no role of friction,but of air friction.since no info,. is given about it so air friction = 0.thereby for lifting we have mg = mass * 9.8 (the wight of the object). and for sliding we have 0.3*mg . therefore 0.7mg of more force is required to lift it.
The net force acting on the block is the difference between the applied force and the frictional force: 12 N - 0.65 N = 11.35 N. Using Newton's second law (F=ma), we can find the acceleration: 11.35 N / 85 kg = 0.133 m/s^2.
Relationship between force and acceleration?
Newton's Second Law of Universal Dynamics.
Force is directly proportional to acceleration. F = ma
Where 'm' is the mass of the bodt being forced.
Newton's two other laws of Universal Dynamicsare : -
-
A body(mass) will remain stationary or in uniform (straight line and speed) motion, unless acted upon by a force.
-
To every forcethere is an equal and opposite force.
What is the difference between frictional and gravitational force?
Gravitational force attracts every massive particle to every other massive particle. It does so by altering the space between the objects, where each particle causes a small gravitational well. Frictional force is caused by the intermolecular attraction between two very close objects.
The main difference between these two forces is their dependence on distance between the objects. Gravitational force is inversely proportional to the square of the distance, classifying it as a long distance force. Conversely, frictional force depends mostly on London Dispersion/ forces, which has a magnitude that is inversely proportional to the distance to the sixth power. This is more clear in the equations modeling these two interactions:
FG=Gm1m2/r2 FL=k/r6
Where FG is the force of gravity and FL is the London force
G is the gravitational constant (6.674x10-11N(m/kg)2)
m1, m2 are the masses of the respective massive bodies
r is the distance between the respective bodies
k is a constant that depends on the polarizability and the ionization energies of the two bodies (in normal conditions other factors would have to be considered in this constant, but for an approximation this is sufficient).
Frictional force, unlike gravitational force, can be changed by the application of an external force perpendicular to the direction of the frictional force. Frictional force experienced by an object is equal to the product of the coefficient of friction (influenced by FL, shown above) and the normal force. Therefore, by changing the normal force (defined at the contact force perpendicular to the surface on contact, it keeps the object from falling through the surface) the frictional force can be changed. An intuitive example is moving a couch: the frictional force is much greater when there is someone sitting on it, increasing the normal force.
What happens when a force act on an object?
When a force acts on an object, it can cause the object to accelerate, decelerate, or change direction. The object's motion is determined by the magnitude and direction of the force applied to it, in accordance with Newton's second law of motion.
This is an example of Newton's second law of motion, which states that the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass. This law is represented by the equation F = ma, where F is the force applied, m is the mass of the object, and a is the acceleration.
Explain how newtons 1st law applies to the clean and jerk?
Newton's 1st law states that an object will remain at rest or in uniform motion unless acted upon by an external force. In the clean and jerk, this law applies during the clean phase where the lifter accelerates the barbell from the floor to the shoulders by exerting force to overcome inertia. In the jerk phase, the law comes into play when the lifter applies force to lift the barbell overhead against gravity.
Why does a cannon recoil when fired?
"For every action, there is an equal and oposite reaction."
The cannonball is pushed out of the barrel at high speed. This pushes the cannon in the opposite direction. That is recoil. The heavier the cannonball, and the faster it is pushed, the more the cannon recoils.
An apple acceterates as it fall from tree what law is that?
The law that describes the acceleration of an apple falling from a tree is Newton's Second Law of Motion. This law states that the acceleration of an object is directly proportional to the force applied to it and inversely proportional to its mass.
Importance of physics and technology to the national development?
Very important. National Development involves managing natural resources and nature. Physics is key to understanding nature and technology is important to manging it.
Education and economics and cooperation are also important.
A body in motion tends to stay in motion due to it what?
A body in motion tends to stay in motion due to its inertia, which is the resistance of an object to change its state of motion. This concept is one of Newton's laws of motion and applies to objects that are moving or stationary.
When a car begins to accelerate from rest does the net force increase?
Yes, when a car begins to accelerate from rest, the net force on the car increases. This is because in order to overcome the inertia of the car and start moving, a greater force is required to accelerate it.
A bus decreases its speed from 80 km h-1 to 60 km h-1 in 5 sfind the acceleration of the bus?
The acceleration of the bus can be calculated using the formula: acceleration = (final velocity - initial velocity) / time Substitute the values: acceleration = (60 km/h - 80 km/h) / 5 s acceleration = (-20 km/h) / 5 s acceleration = -4 km/h^2. So, the bus has an acceleration of -4 km/h^2.
While you are walking across a horizontal floor at a constant velocity, the force your hand exerts on the bag does no work.
However, when you ascend an escalator, the force does perform work on the bag.
Why? To do work is to change the energy of an object. In this case we have either kinetic energy, or gravitational potential energy.
The first case we are walking on a horizontal floor, there is no change in height, thus no change in potential energy. We are also moving at a constant speed, thus no change in kinetic energy. If we sped up, or slowed down, then we would do work.
In the second case, we are ascending an escelator, and changing the height. This changes the gravitational potential energy, and thus does work.
Values of static and dynamic coefficient of friction for concrete to soil?
The static coefficient of friction between concrete and soil typically ranges from 0.6 to 1.0, while the dynamic coefficient of friction is usually slightly lower, ranging from 0.5 to 0.8. These values can vary based on factors such as the roughness of the surfaces and the presence of any contaminants like water or debris.
Newton's laws 2 law of motion is?
Newton's second law of motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. In equation form, this law is represented as F = ma, where F is the net force, m is the mass of the object, and a is the acceleration.
