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Remember to download the Study Guide and Textbook for theory. Links in the description of the "Circular Motion & Gravitational Fields Question" Video.

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gtjubbs

Good work man thank you

Myles Taaziva

Is it possible for both Ek and Ep to be 0 at any point in time? Just out of curiosity

Intuitive

I mean universally all objects have some form of energy but for limited cases yes. EG: a ball stationary on the ground that has zero Ek and Ep

Intuitive

Simple harmonic motion is dealing with objects in motion. So by definition the object will have kinetic energy at some point which will be transformed into another form of energy. (Most likely potential energy of some form)

Oopsis

Ur sketches are not too bad

king4567

There's a mistake in the answer for Q10 bii : y(displacement) axis has been labeled -100,-50,0,50,100. Whereas in the actual mark scheme its -1,-0.5,0,0.5,1

Shareq

tbh. Those sketches aren't that easy (to draw that is). some really weird distorted forms of circles lol. I just treat the points as arcs and try to draw them that way, but they're weird regardless