{change~in~seconds} = m/s.\) The gradient of a distance-time graph represents speed ... be -8 miles per hour because the sign indicates direction (with a positive value meaning travelling away ...

OK, let's do a simple experiment and use a graph to find a mathematical model. Constant Acceleration We are going to measure distance and time for ... accelerate in the direction of the incline ...

If any of these things change in any direction, the orbit of the Earth would change. If the orbit of the Earth changes, then the distance between ... spending much more time at much greater ...