4.3.91 - Centripetal force equations

Use centripetal force F = ma = mv²/r = mrω².

Use - centripetal force equations to connect the rule to the data and decision in the question.

This matters because - centripetal force equations determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - centripetal force equations to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: use the formula and units given in the question, show the substitution and interpret the result; the calculation alone is not the conclusion.