Force, mass and acceleration
You should know the equation that shows the relationship between resultant force, mass and acceleration, and be able to use it.
resultant force (newton, N) = mass (kg) × acceleration (m/s2)
You can see from this equation that 1N is the force needed to give 1kg an acceleration of 1m/s2.
Check your understanding of this section by having a go at the activity.
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