The discussion revolves around rearranging acceleration formulas in the context of kinematics. The original poster presents a problem involving acceleration, final speed, initial speed, and time, seeking to find the initial speed based on given values.
Participants are actively engaging with the problem, clarifying the meanings of the symbols used and discussing the rearrangement of the acceleration formula. There is an acknowledgment of confusion regarding notation, but productive dialogue is occurring as participants seek to understand and clarify the concepts involved.
Some participants note that the notation used for final and initial speeds is unconventional, which may contribute to misunderstandings. There is also mention of dimensional correctness in the equations, indicating a need for careful consideration of units in the discussion.
Can you explain in plain English what these are?lornf said:v/sf=7.6m/s
u/si=?
v/sf is the final speed and u/si is the initial speed. Sorry our school teaches them in unconventional ways.kuruman said:Can you explain in plain English what these are?
lornf said:a=v-u/t
It's OK, as long as we both understand what the symbols stand for. In your notation, the acceleration is $$a=\frac{v/sf-u/si}{t}$$ Can you solve this equation for ##v/sf##?lornf said:v/sf is the final speed and u/si is the initial speed. Sorry our school teaches them in unconventional ways.
Well without values, to rearrange the equation it would be -kuruman said:It's OK, as long as we both understand what the symbols stand for. In your notation, the acceleration is $$a=\frac{v/sf-u/si}{t}$$ Can you solve this equation for ##v/sf##?