Question

What is an example of an unbalanced force causing a change in motion?

Answer 1

There are myriads of examples.

1. An object sliding down the incline at specific angle
2. An object getting pulled or pushed by you on flat surface
3. You pushing the accelerator pedal on your car…
4. Free falling body until you reach terminal velocity
5. Opening your parachute after reaching a terminal velocity (why?)

Try a couple yourself...