1. When a car brakes suddenly, the driver and passengers experience a force pushing them forward due to inertia (Newton's 1st law).
2. When a rocket launches, the force of the rocket pushing against the ground is equal to the force of the ground pushing back against the rocket (Newton's 3rd law).
3. When a skydiver jumps out of a plane, the air resistance against their body creates a force that opposes their motion (Newton's 2nd law).