Answer:
The SI unit of force is named after the scientist who formulated the 3 laws of motion, Isaac Newton
Step-by-step explanation:
Well, it's named after the scientist, as he has made a significant contribution in the field of kinematics, attributing various quantities in relation with new ones (momentum, for example) and has changed the way how people perceived motion altogether. What better way to thank the physicist than to name the unit of measurement of a quantity he long experimented with after him?
A Newton is basically 1 kg * 1 m/s², which is given by a standard equation
F = ma
while the proportionality constant was made equal to 1 for our convenience.
Hope this answers your question.