matthewkokai

Not how to use the code, but how the forum generates the image after the code is entered.

I was curious, what program does SF use for the LaTeX generation?

But the Force would increase as the objects get closer together. So you can't use the equations for constant acceleration.

And the gravity of both objects is significant.

You have 2 objects of mass (M and m). Object M is used as the frame of reference so has a velocity of 0, however object m has an initial velocity of "u". The distance between them when t=0 is d. Object m is heading straight for the centre of M. Now ignoring gravity that is a simple problem (working out time till impact, t). However the reason why I don't know how to solve it is that I would like to include the effect of gravity between the objects. So I would like an equation that gives time until impact assuming that both objects are point objects and all other gravity can be ignored. I'm assuming calculus will be used. Thanks.