What is the effect of zero net force on an object?
The object maintains a constant velocity (either at rest or moving at a constant speed in a straight line).
What is the effect of unbalanced forces on an object?
The object accelerates (changes its velocity).
What happens when an object's mass increases?
Its inertia increases, making it harder to change its state of motion.
What happens if the reference frame is accelerating?
Newton's First Law does not directly apply; fictitious forces may be needed to explain motion.
How do you calculate net force?
1. Identify all forces acting on the object.
2. Resolve forces into x and y components (if necessary).
3. Add the force vectors, considering both magnitude and direction, to find the resultant force.
How do you determine if an object is in translational equilibrium?
1. Identify all forces acting on the object.
2. Calculate the vector sum of all forces.
3. If the vector sum is zero, the object is in translational equilibrium.
Define Newton's First Law.
An object maintains its state of motion unless acted upon by a net external force.
What is inertia?
The tendency of an object to resist changes in its state of motion.
Define translational equilibrium.
A state where the net force on an object is zero, resulting in constant velocity.
What is an inertial reference frame?
A reference frame in which Newton's First Law holds true; an object with no net force maintains constant velocity.
What is net force?
The vector sum of all forces acting on an object.
