Answer:
answer is option C
Explanation:
i.e.
energy required to make the molecules collide so that reaction can occur.
Answer:
It's a kinematic equation.
Explanation:
x displacement = (velocity_final * time) - (0.5 * acceleration * time * time)
You should be given a value, context(word problem), or diagram.
If you're deriving for a term just isolate the term.
If you're asking why the -(0.5 * acceleration * time * time) is negative instead of positive, would need context.
The correct answer, is Option C, I hope this helps :)