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what does newtons first law say?
f the resultant force on an object is zero on a stationary object the object will remain stationary.
if there is a resultant force on a moving object is zero it will carry on moving at the same velocity
what is acceleration proportional and inversely proportional to?
DP - FORCE
IP- MASS
what is the equation for newtons second law
f=ma
resultant force= acceleration x mass
what is inertia?
inertia is the tendency for motion to remain unchanged
what does an object inertial mass measure?
how difficult it is to change the velocity of an object
what does newtons third law state that?
when two object interact their forces they exert on each other are equal and opposite