A man steps off a 600 ft building. 5 seconds later superman dives down to save him. If superman cannot accelerate faster than the gravitational pull of the earth at what velocity must he jump to save the student?
too lazy to find my pad of paper and pencil to work out the equations..... use your one dimensional motion equations, such as the description of velocity as a function of acceleration and time. you need to use the proper time, in seconds obviously, to find a corrected initial velocity.
you now the distance, 600 ft, you know the acceleration of gravity in ft/s^2, you know the time elapsed... solve for Vo...
ya this is virtually plug and play. just find the right formula. man i wish my theoretical mathematics classes where just plug and play... good luck buddy!
So would it be 600=32.18(v) ? and i forgot to add that we are disregarding friction so im using terminal velocity
Equations of Motion - The Physics Hypertextbook (i'm working it out, but you should really do this on your own) things that will help you figure it out: how far has the man moved in that 5 seconds? what is his new velocity at that time?
I know man haha. I started the year in conceptual physics which was easy, but then i got moved up to honors physics so im a bit behind