Acceleration is defined as the rate of change of velocity with time, i.e. change in velocity divided by time, a = Ξv / t (where Ξv = v β u). The equation can be rearranged to give v = u + at.
Acceleration is equal to the gradient of a v(t) graph.
If the final velocity is unknown, the displacement of a system with a constant acceleration can be found using an equation s = ut + (atΒ²)/2.
The equations of motion can be combined in a number of ways to find an unknown variable. If time isnβt known, the equation vΒ² = uΒ² + 2as can be used to interpret motion in a system with a constant acceleration.
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