- #1
MatinSAR
- 603
- 182
- Homework Statement
- We have v-t graph of a moving object. We are asked to guess it's F-x graph.
- Relevant Equations
- ##\vec F=md \vec v/dt ##
If we consider ##v=-3t^2## then: $$x=-t^3$$$$a=-6t$$
Using ##t=-x^{1/3}## we have : ##a=-6(-x^{1/3})=6x^{1/3}##. My answer suggust that ##F=Ax^{1/3}## but in options we have ##F=-Ax^{1/3}##.
Can someone guide me where my mistake is?