Recent content by phase0

you are right,this was the reason why I wrote down Fnet=mg-ma-f I thought in free body diagram mg is oppsite direction of ma and f.But it is true that writing Fnet in left hand side of my equation was silly

An elevator of mass M is accelerating downward with constant acceleration A. Friction force acting on the elevator is constant and given by f (The initial speed of the elevator is zero.). Find the power generated by the engine of the elevator (in terms of M, A, g, f, and time t). For this...

I know that work is equals the change in the particle’s kinetic energy.Now, we have a particle with initial velocity and it has also kinetic energy.We have friction force oppsite direction of the motion and we have also spring force.Then I thought if I wrote down...

So, how could you be sure of this result,do you have any suggestions on what to do or how to think?

Oh,thank you!Here is my question,I just did not share the original version because I did not want to be understood as solving my question to you

Summary:: I am not sure about how can I write an appropriate equation to a question which include friction force and initial velocity. I came across a question that I am not sure how to write an equation.In the question, there is an object of mass m that is thrown into spring at v initial...