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Velocity and Acceleration: iGCSE
- Acceleration = Final Velocity- Initial Velocity all over the time taken
- a = (v-u)/t
- a = (v-u)/t
- Velocity is a vector, and changes when an object changes direction at speed
- As velocity changes, it can be described as acceleration (+gradient) or deceleration (-gradient)
- As velocity changes, it can be described as acceleration (+gradient) or deceleration (-gradient)
- The area under a Velocity-Time graph is the distance travelled
- A seady velocity is sown by a straight line, and a steady acceleration is shown by a positive gradient
- A seady velocity is sown by a straight line, and a steady acceleration is shown by a positive gradient
- For all objects around the Earth's surface, there is a constant acceleration of approx.
10m/s^2- for example, a fruit falling from a tree will have a velocity of 20m/s after 2 seconds of falling
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