A body at rest will remain at rest unless an outside force acts on it, and a body in motion at a constant velocity will remain in motion in a straight line unless acted upon by a net external force.

If an unbalanced force acts on a body, that body will experience acceleration (or deceleration).

The tendency of an object to resist changes in its motion.

The vector sum of all forces acting on an object.

Friction that occurs when surfaces are not sliding relative to each other.

Friction that occurs when surfaces are sliding relative to each other.

A unit-less constant for a given surface, representing the ratio of frictional force to normal force.

Static Friction: Prevents motion, adjusts to applied force up to a maximum value. | Kinetic Friction: Opposes motion, has a constant value while sliding.

First Law: Describes inertia and the tendency of objects to resist changes in motion. | Second Law: Quantifies the relationship between net force, mass, and acceleration ($\Sigma F = ma$).

1. Draw a Free Body Diagram (FBD). 2. Resolve forces into x and y components. 3. Apply Newton's Second Law ($\Sigma F = ma$) in each direction. 4. Solve for unknowns.

1. Find the velocity functions $v_x(t) = \frac{dx}{dt}$ and $v_y(t) = \frac{dy}{dt}$. 2. Find the acceleration functions $a_x(t) = \frac{dv_x}{dt}$ and $a_y(t) = \frac{dv_y}{dt}$. 3. Evaluate $a_x$ and $a_y$ at the specified time t. 4. Calculate the net acceleration $a = \sqrt{a_x^2 + a_y^2}$. 5. Find the net force using $F = ma$.