When a constant force acts on an object the acceleration is constant, directly proportional to the force and in the direction of the force.If the force is not constant then the acceleration is not constant.The NewtonOne newton is defined as the force needed to accelerate a mass of 1kg by 1ms-2.The force is directly proportional to the acceleration:F ∝ aSince F = k ma where k is the constant of proportionality, by defining the newton as above, k= 1.Therefore F = ma.
Constant Acceleration
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Specification: Edexcel Physics (8PH0), AS-level, Topic 2: Mechanics. Topic: Motion.
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