Physics 12 - Interpreting Motion

Here are my thoughts. I hope I'm correct!


In order for the motion of an object to have constant speed, the net forces acting on the object must equal to 0. Remember, F = ma, and when the speed is constant, acceleration (a) must be 0 => F = 0.

Fnet on objects A and C is 0, so the object A and C are moving at a constant velocity.


Arguably, all of these objects could be moving to the right or left since a net force does NOT indicate which way an object is moving. (the law of inertia)


Furthermore, if there's an unbalanced force, where Fnet is not equal to 0, as in the case of B and D, then there must be some acceleration.


Situation C, perhaps.

Thank you so much for this sir! But what about if there are no forces and labeling is needed?









EXERCIDE ON FREE BODY DIAGRAMS

DIRECTIONS: LABEL THE DIAGRAMS WITH THE FORCES ACTING ON THE OBJECT USING ARROWS.

Now that I learned how to interpret motion based on your explanation which I am really thankful for, how about if it  is labeling sir?

Not sure if this is right, but it's worth a shot

Thank you so much sir! I hope you had a happy New Year's celebration! Always so grateful!!