@@AidenPage-1 think he forgot to put it in the sqrt bc he uses it later on in the question when the g's cancel out from division then he magics up a h but it from prior equation (27:32 is where the h should be i think )(31:03 he brings it back here)
assume any force acting down is negative, so when it is going down again velocity becomes negative too as it is going in that direction. Easy way to look at it is the positive and negative signs imply direction
watch at 2x speed 👍
Haha literally did this at the start - saved 15 mins
Did you forget about the root H in Q3 part b ?
Yes he did, but he included it when he solved the second equation for v^2 = u^2 - 2gH
Bro I too got really confused at first 😢😂
on the last question part b where does the h go when you go from the v squared equation to just v wouldnt it be the square root of (6g/7)h
This is what I thought
@@AidenPage-1 think he forgot to put it in the sqrt bc he uses it later on in the question when the g's cancel out from division then he magics up a h but it from prior equation (27:32 is where the h should be i think )(31:03 he brings it back here)
2:33 can anyone explain why its negative g becuase isnt it going up and then down so how can it be negative?
assume any force acting down is negative, so when it is going down again velocity becomes negative too as it is going in that direction. Easy way to look at it is the positive and negative signs imply direction
thank you, this is so neat