![]() Its velocity changes by 35 - 25 = 10 m/s. The equation for acceleration can also be represented as:įor example, a car accelerates in 5 s from 25 m/s to 3 5m/s. The units for acceleration are commonly written as m/s/s or m/s 2. ![]() ![]() When an object moves in a straight line with a constant acceleration, you can calculate its acceleration if you know how much its velocity changes and how long this takes. For example, 15 m/s is a speed, but 15 m/s North is a velocity (North is the direction).Ĭommonly velocities are + (which means forwards) or - (which means backwards).įor example, -15 m/s means moving backwards at 15 metres every second. Velocity has a direction as well as a speed. Velocity is not exactly the same as speed. You can calculate the acceleration of an object from its change in velocity and the time taken. ![]()
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