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MotionLab
F = m · a, in newtons.
Force equals mass times acceleration — a heavier object needs proportionally more force to achieve the same acceleration, and the same force accelerates a lighter object more than a heavier one.
Engineering (how much force a motor or brake needs), sports science (launch force in throwing events), and basic physics problems all reduce to this single relationship.
Force (N)
98.1
F = m · a (Newton's second law)
What you entered
Newton's second law: F = m × a
10 × 9.81= 98.1Result
Force (N): 98.1
A 10kg mass accelerating at 9.81 m/s² requires 98.1 newtons of force.