Confused between what acceleration, velocity, and speed is.?

Question

Please tell me the difference.

Answer 1

I hate physics.

I could copy and paste some fancy diffinition, but i think it's easier if someone says it in english instead of jibberish!

Well, speed is, of course, how fast something is going.

Velocity is almost the same as speed, and if you're reading a question and they give you the seed of something, it's the velocity. Velocity is just the speed of motion.

Acceleration is the increase of speed or velocity, there is also deceleration, which is when something is slowing down, or moving backwards/turning.

Hope that helps!

Answer 2

velocity, change in displacement with respect to time. Displacement is the vector counterpart of distance, having both magnitude and direction. Velocity is therefore also a vector quantity. The magnitude of velocity is known as the speed of a body. The average velocity or average speed of a moving body during a time period t may be computed by dividing the total displacement or total distance by t. Computation of the instantaneous velocity at a particular moment, however, usually requires the methods of the calculus.

speed, change in distance with respect to time. Speed is a scalar rather than a vector quantity; i.e., the speed of a body tells one how fast the body is moving but not the direction of the motion. If during time t a body travels over a distance s, then the average speed of that body is equal to s/t. The speed and direction of a body's motion together determine the body's velocity.

acceleration, change in the velocity of a body with respect to time. Since velocity is a vector quantity, involving both magnitude and direction, acceleration is also a vector. In order to produce an acceleration, a force must be applied to the body. The magnitude of the force F must be directly proportional to both the mass of the body m and the desired acceleration a, according to Newton's second law of motion, F=ma. The exact nature of the acceleration produced depends on the relative directions of the original velocity and the force. A force acting in the same direction as the velocity changes only the speed of the body. An appropriate force acting always at right angles to the velocity changes the direction of the velocity but not the speed. An example of such an accelerating force is the gravitational force exerted by a planet on a satellite moving in a circular orbit. A force may also act in the opposite direction from the original velocity. In this case the speed of the body is decreased. Such an acceleration is often referred to as a deceleration. If the acceleration is constant, as for a body falling near the earth, the following formulas may be used to compute the acceleration a of a body from knowledge of the elapsed time t, the distance s through which the body moves in that time, the initial velocity vi, and the final velocity vf:

Answer 3

Velocity is the directed counterpart of speed, When the speed or velocity of an object is increased or decreased over
time, then the object is accelerating in that time interval

the velocity increases either from rest or from an initial velocity by the amount a*t. Dimension units for acceleration
are meter/second^2. The dimensions for velocity then are
m/s^2*s=m/s.

In problems of projectile motion, if one is given the speed of
the projectile and its angle of takeoff, one now has a vector
quantity velocity to work with, resolvable into horizontal and
vertical components.

Answer 4

Acceleration is the value at which velocity will advance jointly as velocity is in basic terms your velocity ex: the automobiles acceleration is two m/s/s jointly as the the value is 4 m/s meaning in a 2d the automobile's velocity would be 6 m/s because of the fact of its acceleration of two/s/s

Answer 5

Speed is how fast you are going.

Velocity is the same thing as speed, only direction is used. Therefore, velocity can be negative, while speed can't.

Acceleration is the change in velocity. If you change direction or speed, then velocity changes, and thus you are accelerating.

Answer 6

Speed is the absolute distance covered divided by the time it takes.

Velocity is speed in a specific direction

Acceleration is the difference in speed, or velocity, over a given time.

Answer 7

Velocity is the absolute rate at which an object is travelling. Speed is the rate at which something is travelling in relation to a point of reference. For the most part, speed and velocity may be used interchangeably.

Acceleration is the rate at which an object's velocity changes.

Answer 8

Velocity is how fast something is moving but with a direction. You'd say something like 20 mph due north.

Speed is how fast something is moving without a direction. You'd say 20 mph.

When your speed is changing, ie going faster and faster or slower and slower, you have acceleration.

Answer 9

I think velocity is the same as speed.

Acceleration has to have a directional component, it is a vector.