We use 1.70 sec for Stone B because it took Stone A , 6.7 sec to reach the ground. If we minus 5 sec (Because it was dropped 5 sec later) from that which is 1.7, that is the time B has been in the air for( free fall) waiting to hit the ground. (Hope it helped someone coz I struggled at first😅)
For question 3.2.3 why would the time for the hot air balloon be 1,7 seconds wasn’t the balloon was still moving before stone B was dropped and while stone A was dropping, so won’t it include those 5 seconds?
@@MuzwakheManziniBut aren't they asking where the ball B was when ball A hits the ground and where the balloon also was in that 6.7 seconds and the difference between those distances would be the distance between the balloon and ball B?I'm so confused.
sir wouldn't the time of the ballon be 5s since the ball was released at 5s so the in that 5s, the balloon should've been rising up and the 1.7s is comparison between rock B and A. when you say 1.7s for the ballon, that would mean the rock was released 1.7s later not 5?
@Mr Kevin in 3.2.2 when calculating the time u chose downwards as positive and made V initial negative but shouldn't it be positive bcoz in 3.3.1 when we calculated that initial velocity u used downwards and got a positive answer so why'd u change pls enlighten me sir🙏🏽🙏🏽
Why do we ignore the time that stone A took when it was dropped until it reached the maximum velocity of zero and then returned downwards?...coz i think that time counts ...help me I'm confused 😢
While stone A was going down the ballon was still going up. Wouldnt using 6.7s be more accurate 🤷♀️ I respectfully disagree with your answer Kev 14:04
We use 1.70 sec for Stone B because it took Stone A , 6.7 sec to reach the ground. If we minus 5 sec (Because it was dropped 5 sec later) from that which is 1.7, that is the time B has been in the air for( free fall) waiting to hit the ground. (Hope it helped someone coz I struggled at first😅)
For question 3.2.3 why would the time for the hot air balloon be 1,7 seconds wasn’t the balloon was still moving before stone B was dropped and while stone A was dropping, so won’t it include those 5 seconds?
smart
That's what I was thinking...🤔
Bro that what i was thinking
i also thought so at first but i realized the question wanted the distance between balloon and ball b so hes correct
❤ the tym of hot air Ballon keep on increasing as it goes up y time is 1.7sec
Sir i dont understand why did you use 1.70 for the hot air ballon
in question 3.2.2 ,why did you use 1.70 as the time for the hot air balloon>?????
I think that is because you wanna find out how long has the hot air balloon also travelled in the very same duration of 1,7s which stone B moved....
@@MuzwakheManzini correct
@@MuzwakheManziniBut aren't they asking where the ball B was when ball A hits the ground and where the balloon also was in that 6.7 seconds and the difference between those distances would be the distance between the balloon and ball B?I'm so confused.
sir wouldn't the time of the ballon be 5s since the ball was released at 5s so the in that 5s, the balloon should've been rising up and the 1.7s is comparison between rock B and A. when you say 1.7s for the ballon, that would mean the rock was released 1.7s later not 5?
@Mr Kevin in 3.2.2 when calculating the time u chose downwards as positive and made V initial negative but shouldn't it be positive bcoz in 3.3.1 when we calculated that initial velocity u used downwards and got a positive answer so why'd u change pls enlighten me sir🙏🏽🙏🏽
THANK YOU❤❤... I've been saying this the whole time😂😂😂😂
@@therevealer3479 I'm telling u and he won't even respond
Why do we ignore the time that stone A took when it was dropped until it reached the maximum velocity of zero and then returned downwards?...coz i think that time counts ...help me I'm confused 😢
12:13 the balloon is going down, not up. The initial velocity should be positive
Why do we use 1.7 as the time for the ballon,does that mean the ballon moves after the stone hits the ground?😵💫
Why did we use 1.7 for the hot air balloon instead of 5.@kevin math's and sciences
beacuse sir took 5 seconds stone B away from 6,70 seconds from stone A
While stone A was going down the ballon was still going up. Wouldnt using 6.7s be more accurate 🤷♀️ I respectfully disagree with your answer Kev 14:04
Why did u make the velocity of stone B a negative ?
Also have the same question
because he chose downwards as positive
Okay
Optical phenomena videos 😢 not available 💔
it is still part of the sillabus?
@@thabangmanamela-ph8sv yes❤️
@@Hendrycandyhey , they’re up now I think as the photo electric effect ???idk if that’s the same thing