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Chapter 4 Section 1

STUDY
PLAY
Inertia
the tendency of an object to resist a change in its motion
Inertia and Mass are related
because the greater the mass of an object, the greater its inertia.
Inertia affects a human in a car crash
because of their inertia, they are still traveling at the car's original speed of perhaps 50 km/h.
When object moves through air
it does not accelerate or slow down.
An object can be at rest
when forces are balanced.
as the object's velocity changes
Inertia of an object does not change
an object in motion stays in motion
unless it hits something, it is catched or stops from gravity
an object at rest stays at rest
unless an unbalanced force acts upon it
Yes, but they are balanced
Are forces acting on an object that is at rest?