Skin Trade (film)
2015
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Acceleration. Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.
- 9 min
- Sal Khan
- how do u find momentumMomentum is found by multiplying the mass which is moving by its velocity. Momentum is typically represented by the variable "p", so the equation f...
- Ok so I just wanna make sure I understand this correctly: So the reason seconds is squared is becaus...I think you get the point, but it may be easy to be misinterpret. If I were to try to figure out the number of units of time per another unit of ti...
- so speed without direction is a scalar quality and velocity is speed with direction making it a vect...yes as long as a number assosiated with how fast an object is moveing has a dirction it is a vector quality otherwise its a scaler quality
- As I know lots about cars, I know that accelerating in the beginning is easier than when you go high...You're technically referring to average values for each second as well. From the initial set of information described, it is not possible to get ba...
- What about deceleration? what's the definition and how do you calculate it? is it any different from...Deceleration is just acceleration, where the acceleration vector is pointing in the opposite direction in respect to the velocity vector. Usually i...
- I'm trying to understand what all of these kinematic formulas mean. So playing around with some grap...What do you mean by the "magnitude of the graph"? You are doing (vf^2 + t^2)^(1/2)? Why would you want to do that?
- At 6:08, how did he cancel out the hour from the denominator ?To be honest, I find this explanation is confusing since it mixes incomplete explanations about acceleration and unit conversion. Your question is...
- is acceleration always constantNo, if the force is not constant then the acceleration is not constant. Both gravity and EM forces vary with position.
- what is a porsche?A Porsche is a make of German sports car.
- Trailers & Clips
The Acceleration Video Tutorial discusses what it means to accelerate, how to determine the acceleration value and direction, and how to distinguish accelerating and non-accelerating objects based on data tables and dot diagrams. Numerous examples, illustrations, animations, and example problems assist in the explanations.
Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both.
For example, your weight on the moon is much less than your weight on earth, but your mass is always the same everywhere. - Mass: is the measure of the amount of matter in a body. - Weight: is the measure of the amount of force acting on a mass due to the acceleration of gravity.
- 4 min
- Sal Khan
