keivn wanted to ask if in question 4.2 can we use the kinetic enenergy equation where EKi=EKf where i got 4 as my answer but didnt know the direction since its a elastic collison
Hey Mr kev... I have a problem with 4.2. The question said the collision happened elastically and you said whenever we see elastic we should use the specific formula ( Elastic Collisions), but you used Conservation of linear momentum 😮 is it me or you made a mistake ❤
no he said the moment two things collide into each other or bump into each other you have to use conservation of linear momentum . indeed it is elastic collision but read the question first and see what it is asking you to do if you watch previous videos you will understand
At 4.3 when Kevin said we should actually calculate the answer using Y's values I got angry coz I used X's values only to realize they exert the same force coz of newton's third law 😂😂😂😅
"if your exam is tomorrow"😭😭my exam is indeed tomorrow 😭😭😭
I’m busy pushing @ 23:45 rn😭
It's currently 2:07. Luckily, impulse is my last topic I needed to study😂😂
in an hour😭
keivn wanted to ask if in question 4.2 can we use the kinetic enenergy equation where EKi=EKf where i got 4 as my answer but didnt know the direction since its a elastic collison
you can see on the diagram which way its going
@@hexadecimal_but is 4 correct?
Respectfully Kev, at 10:58 wouldn't Ball Y exert the same force on Ball X because of Newtons 3rd Law🤷♀️
Yes it does. I had the same thinking. And did the calculations using ball x and it's the exact same answer.
14 days to go before final physical science 🤧🤧
Hey Mr kev... I have a problem with 4.2. The question said the collision happened elastically and you said whenever we see elastic we should use the specific formula ( Elastic Collisions), but you used Conservation of linear momentum 😮 is it me or you made a mistake ❤
no he said the moment two things collide into each other or bump into each other you have to use conservation of linear momentum . indeed it is elastic collision but read the question first and see what it is asking you to do
if you watch previous videos you will understand
2:15 😩😩🥴
Why!!😂😂😂😂
At 4.3 when Kevin said we should actually calculate the answer using Y's values I got angry coz I used X's values only to realize they exert the same force coz of newton's third law 😂😂😂😅
P1 it's tomorrow 😭and I'm not ready can we do Doppler effect after this session 😢