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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
Which two graphs represents the motion of an object on which the net force is zero?
A horizontal line on a position-time graph or a stationary line on a velocity-time graph represents the motion of an object with zero net force. These graphs indicate constant velocity motion, where the object is moving at a consistent speed in a straight line.
What does Newtons first law explain?
Newton's first law of motion 'Everybody retains its state of rest or state of motion, until an external force Is applied on it. A Person sitting in a moving car fall forward , when the car stops suddenly. Athlete run some distance , before taking a long jump.
The tension in the cable at the end where the window washer stands is 615 N. This tension is calculated by summing the torques about the other end of the scaffold. The tension at the other end can be found by balancing the vertical forces acting on the scaffold.
Inertia varies depending on what?
Inertia varies depending on the mass of an object. Objects with larger mass have greater inertia, meaning they are more resistant to changes in motion.
Newton's first law of motion, also known as the law of inertia.
Explain what is meant by a concurrent vectors?
Concurrent vectors are vectors that have a common point of intersection. This means that when drawn with their initial point at the same point, their terminal points all meet at a single common point.
Newton's third law of motion states that: "For applied force (A), exists some force (B) of equal magnitude acting in the opposite direction of the force applied.".
The force of the weight (which is the mass of the table multiplied by gravity) [W=mg] pushing down on the floor is counterbalanced by an equal and opposite force of the floor pushing up on the table. This is why the table does not fall through the floor. The floor is able to provide this force without allowing the table to move through it because the bonds between its atoms are strong enough.
Measurement of the extent of an object along its greatest dimension?
Length is the measurement of the extent of an object along its greatest dimension. It typically refers to the longest side or distance from one point to another on an object.
"Frictioning" is not a commonly recognized word in mainstream English vocabulary. It may be an informal or creative term used to describe the action of creating friction, but it is not widely accepted or formally listed in dictionaries.
What is One example of newtons first law of motion?
the first law is more of about establishing a reference frame for the other two laws of motion. The first law is about inertia. It simply states that something will not change speed if there is no force acting on it.
a ball on a trolley is a good example, because when you pull the trolley, the ball moves backwards in the trolly, but doesnt move relative to the ground, the reason being that no forces are acting on the ball itself. Air hockey is another example, we will assume for this examply that its surface goes on forever. The air reduces the amount of friction, friction is a force. With no air, the puck can be pushed , but will come to a stop quite quickly, but with a reduction in friction, i.e. the air turned, it would take a lot longer for the puck to stop. Intuitively (this isn't quite rigourous), we can say that zero friction causes the puck to continue moving indefinitely.
But, for a complete understanding , you should take newtons laws together, rather than one at a time.
Newston's first law of motion?
Newton's first law of motion is that if a object travels through a gravity-less space, it will never stop unless a force greater to or equal to the amount of force it took to originally move the object.
Draw a free-body diagram of a football being kicked?
A free-body diagram of a football being kicked would include forces such as gravity pulling the ball downward, the force exerted by the kicker's foot pushing the ball forward, and air resistance opposing the ball's motion. The diagram would show these forces acting on the football as vectors.
20 examples of periodic motion?
20 examples of periodic motion:
Ceiling fan
Heart beats
Clock
Moon moving around the earth
Child swinging on a swing
Ferris wheel going round and round
Jumping up and down on a bed
Waves
Guitar string
Vibrating
Teeter-totter
The first law of motion discusses which principle?
Newton's first law of motion states that an object not in motion will stay still unless acted upon by a force. Also, an object in motion will continue in motion at a constant velocity in a straight line unless acted upon by another force.
The symbol for weight force is typically represented by the letter "W" in physics equations. It is the force acting on an object due to gravity and is equal to the mass of the object multiplied by the acceleration due to gravity.
To calculate velocity you need to know the total?
Velocity is a speed and its direction. Speed is the quotient of change in distance (D) divided by change in time (T). Therefore calculating speed is dependent on the two variables of D and T, as well as the direction in which the position has changed. In SI unites the measure of the magnitude of velocity uses meters (m) per second(s).
Yes, a comb is considered a simple machine because it has a basic mechanical function of separating or straightening hair by utilizing the concept of wedges and levers.
Why do loose objects on a dashboard slide right when the car turns left?
This happens because of Newton's First Law. This law states
Every body perseveres in its state of being at rest or of moving uniformly straight forward, except insofar as it is compelled to change its state by force impressed. This means that when an object is moving, it will naturally continue in a straight path until something acts upon it. When you turn left, the object still wants to move in a straight path, so it is not really turning right, it is attempting to continue move in a straight line.
Having four-wheel drive can help with traction on icy roads, but it won't necessarily make the car faster around corners. The key to driving safely on icy roads is to reduce speed and drive cautiously regardless of the drivetrain. It's always important to adjust your driving according to the road conditions to avoid slipping.
Since we know that Mount Everest is 8848 meter high, we just have to add that to the radius of the Earth and find the radius of the centripetal force. We have that the radius is 6408848 meters.
Now, we need the formulas:
F=(mv^2)/r and
F=(GMm)/r^2
We combine the tow formulas and get
(mv^2)/r=(GMm)/r^2
Solve for v and get
v=sqrt(MG/r),
G being 6.67 x 10^-11
M being the mass of the Earth, or 6.4 x 10^24
and r we already solved
So, plug in, and the answer we get is 7902.2 m/s
What are examples of newton's second law?
A common example is a person up to bat in a game, such as cricket or baseball. A particular player has a maximum strength that limits the force that they can produce on the bat. The strength provides the force to move the bat. A lighter, less massive bat will move much faster.
A similar example is the difference between a drag-racer and an economy car. The drag racer has a very large engine that can generate much force, and a very low-mass frame, to accelerate quickly. An economy car has a much more massive frame and a much smaller engine that can generate a smaller force.
Another example is a tuning fork. A tuning fork is a spring that converts force to speed forward, then forward speed to force, and back, cycling over and over. If the fork is made shorter, there is less mass. The lower mass accelerates more quickly, so the fork cycles more often and has a higher pitch.
A shorter plucked string has a higher pitch for the same reason, if it is pulled to the same force as a longer string. In woodwinds or organ tubes, the vibrating medium is the air in a tube. Longer tubes require a longer, more massive column of air to move, and have lower resonant pitches.
A more exotic example is a rocket engine. Chemical rocket engines all produce similar amounts of energy per quantity of fuel, and therefore place similar energies into the exhaust. However, engines that produce lighter molecules have faster exhausts with more acceleration for the same mass, and produce more force per mass-unit of fuel.
droping 2 tamatoes 1 heavier then the other
Newton's second law is a formula. An example of this formula in use is when a cart is being pushed, the more weight added with the same force pushing it would cause the velocity to decrease. The more force would cause the velocity to increase.
How does force vary with acceleration at constant mass?
Force is directly proportional to acceleration when mass is held constant. This relationship is described by Newton's second law of motion, which states that force equals mass times acceleration (F=ma). Therefore, as acceleration increases, the force required to produce that acceleration will also increase.
What name is given to the property by which objects resist changes in motion?
Inertia is the tendency of an object to resist changes in its motion.
This is, in essence, the statement of Newton's first law.
The concept of inertial is quantified by mass.
We say an object with twice the mass has twice the inertia.
See also the related question link.
How did isaac newton come up with the first law of motion?
Isaac Newton observed that objects at rest remain at rest and objects in motion continue moving with a constant velocity unless acted upon by a net external force. He formulated the first law of motion based on these observations and his experiments with pendulums and falling objects.
