I just wanna say that everything about the video is great...but if you could just use a more complex example it would be better because the questions aint always so easy just hope you can do that thanks
Hi. I have a problem. I tried to solve the problem for the 2nd law using the formula: a=m.s^-2 a=m.s^-2 s^2=m/a s^2=1000/0,533 s= 43,3 can you please help me to find my error? thank you
The problem is that you used the wrong equation. We have many different formulations for acceleration (use the 4 equations of accelerated motion for example, or Newton's second law F = ma). However, what you used isn't an equation as such - you're just using the units (acceleration is measured in meters per second squared). You should use one of the other equations like I did. Newton's 2nd law actually has a better formulation using momentum, where we write that the resultant force = rate of change of momentum. In other words, Fnet = dP / dt
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I just wanna say that everything about the video is great...but if you could just use a more complex example it would be better because the questions aint always so easy
just hope you can do that
thanks
I just wanted to say that without your videos I would have jumped off a bridge a long time ago. Thank you that you are here
came for the revision left with knowing how to get ketchup out of the bottle correctly
Hah, nice one. I do try to give interesting uses. Ketchup is important to life :)
At 3:53, isn't it 1N to the left?
exactly
yes, he confirmed it in another comment
Thank you
Hey, on EX: 3 isn't it 1N to the left??? 3:53
Yes, it would be - you're correct, thank you! Cheers, Mitch
Why did you make it 1000 meter and not keep it at 1km? U sed kg in the mass before
The official units we use in the IB (SI units) use metres for length (and not km), but we use kg for mass (rather than g).
i just use circular motion to get the ketchup out lol
So you spin it around? Sounds....dangerous :)
Really helped alot， thanks
You're welcome!
Thanks
You're very welcome! Cheers, Mitch
ib有你了不起
seems like you really like velociraptor lol
I do! Cheers, Mitch
Hi. I have a problem.
I tried to solve the problem for the 2nd law using the formula: a=m.s^-2
a=m.s^-2
s^2=m/a
s^2=1000/0,533
s= 43,3
can you please help me to find my error? thank you
The problem is that you used the wrong equation. We have many different formulations for acceleration (use the 4 equations of accelerated motion for example, or Newton's second law F = ma). However, what you used isn't an equation as such - you're just using the units (acceleration is measured in meters per second squared). You should use one of the other equations like I did. Newton's 2nd law actually has a better formulation using momentum, where we write that the resultant force = rate of change of momentum. In other words, Fnet = dP / dt
life SAVER
So happy to be able to help you! Cheers, Mitch