yeah, when i read that i wasn't sure why 10 was being used. ill have to ask because its usually 9.8. but now that i know depth of well (20m) for the first part of problem then the initial velocity would be 10m/s for the second part of problem (throwing rock in well right??). This is where i am...
so based on what you said i would take this equation Vf = Vi +at and rearrange it to get this Vi = Vf - at so plugging in numbers i would get Vi = 20m/s - 10m/s * 1s = 10
also not sure what you mean by "it's not 20m, its somewhat less than that" do you mean I am off. Only thing i could...
Well i drew three pictures. the first picture is a well with initial velocity of 0m/s. an acceleration of 10m/s (problem said use 10 not 9.8) a time of 2 seconds. which is basically a simple free fall question so...
Vf = Vi + a * t
Vf = 0m/s + 10m/s * 2 seconds
dropping the stone...
Homework Statement
Your roommate accidentally tosses your Frisbee onto the roof of a 16m high building. You figure you are going to have to go looking for a ladder, but as you stare up at your favorite competition disk, you realize you could possibly knock it loose with a stone. You don’t...