so a constant force of 
will cause a mass of 1 kilogram to accelerate at a rate of 1 metre per second squared in the direction of the force. [P2.3]
is: the SI unit of force. [P2.3]
is defined: by so a constant force of will cause a mass of 1 kilogram to accelerate at a rate of 1 metre per second squared in the direction of the force. [P2.3]
is roughly: the weight of an apple!
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