What is the direction of the acceleration vector of a person on spinning earth?
The acceleration vector in a uniform circular motion is towards the center.
It is a vector. A scalar has only magnitude. A vector has magnitude and direction. Acceleration is a vector because it has magnitude and direction. That's why an object can be said to be accelerating if it has a circular rotation and a constant speed; even though it's speed isn't changing, it's direction constantly is. Displacement (s), velocity (v), and acceleration (a), are vectors because they have both magntude and direction.
No, they are always in the same direction, as expressed in Newton's Second Law, which is usually expressed as: F=ma (force = mass x acceleration). In this equation, acceleration is a vector, so when multiplying it by a mass (which is NOT a vector), you get another vector that points in the same direction.
Negative Acceleration: Negative Acceleration refers to an object whose speed decreases as it moves away from its original starting position. Actually, that's not entirely correct. Acceleration is a vector quantity and, therefore, depends on direction. If an object is moving in a straight line, in the negative direction, its acceleration is positive if its speed decreases with time and negative if its speed increases with time. Think of it this way: if the acceleration vector…
Acceleration is defined as the change in velocity, and is a result of a force being applied on the object in question. Acceleration will not always result in an object changing direction, but it is capable of it (in the case of centripetal acceleration, all it does is change the direction.) Acceleration is a vector, therefore a direction must always be given when a value is stated.
Yes. For a complete understading, Newton's Second Law (F=ma, force = mass x acceleration) should really be understood to be a law relating vector quantities; mass is a scalar, but both force and acceleration are vectors. And if you multiply a vector by a scalar, you get another vector in the same direction.
Velocity??? Are you mad?? The answer is "Acceleration" as explained below. Velocity is not related to "rate of change", but its the speed in a specific direction, its a vector quantity!! The closest answer would be "Acceleration". According to Wikipedia, "acceleration is the change in velocity over time. Because velocity is a vector, it can change in two ways: a change in magnitude and/or a change in direction. In one dimension, acceleration is the rate…
Increasing the mass decreases the acceleration. Newton's Second Law: F = ma (Force = mass x acceleration) --> a = F/m, meaning that the relationship between the acceleration and the mass is inversely proportional. Mass is a scalar quantity because it doesn't have direction. Acceleration is a vector quantity because it has both magnitude and direction.
The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector. Acceleration= net force divided by mass.
Acceleration is a change in velocity with respect to time. Velocity is a vector quantity, meaning it has both a direction and a speed. Acceleration is therefore also a vector quantity. So if you change the direction an object is moving without changing its speed, you are still accelerating the object. The best example of this is circular motion. If you tie a string to a rock and swing around your head at a steady…
There's a couple of different measures of motion, but I think what you're talking about is the concept of the vector, which is simply a description of an object's velocity, acceleration and direction. It's a line segment. The direction and length of the vector describes (within the context of the problem it's being used in) its direction and velocity/acceleration respectively.