Yoel3, you're absolutely correct. The mass of the combination of the bullet and block should be 1.91kg. Thank you for your help on this. The mistake is now noted in the actual video. Again, thank you.
Thank you for this video! Your explanation was much clearer than the one in my textbook. I would, however, have gone through all the steps allowing you to arrive at 1/2mv^2=mgh because, while I understood where that came from, it may be confusing for other people who may not be familiar with that equation yet. Otherwise, great video! Thanks!
I know it's been a year but for anyone wondering the same thing, the former Velocity you mention is the velocity of the bullet+block together after the collision while the latter is the initial velocity of the bullet.
Actually, if the block is an "attacker" you want most of the kinetic energy in the bullet "lost" in the block because it means more internal damage and deformation to the attacker!
You have a little mistake in it. The principal is ok, but you said that the bullet is 0,01kg and pendulum is 1,9kg and it equals 2kg. In fact it equals 1,91kg... Just to be clear ;)
Yoel3, you're absolutely correct. The mass of the combination of the bullet and block should be 1.91kg. Thank you for your help on this. The mistake is now noted in the actual video. Again, thank you.
Thank you for this video! Your explanation was much clearer than the one in my textbook. I would, however, have gone through all the steps allowing you to arrive at 1/2mv^2=mgh because, while I understood where that came from, it may be confusing for other people who may not be familiar with that equation yet. Otherwise, great video! Thanks!
I know it's been a year but for anyone wondering the same thing, the former Velocity you mention is the velocity of the bullet+block together after the collision while the latter is the initial velocity of the bullet.
Best explanation I have ever seen. You are a gifted teacher.
So i have fisics lesson and the teacher ask's whats the problem with this between 0:00 and 6:57 so please can someone help me beacuse i need an A+
Great explanation helped a ton but is anyone else completely bothered that 1.9kg plus 10g doesn't add up to 2kg! That was killing me the whole video.
10g = 0.01kg. 1.9kg+0.01kg = 1.91kg
Wow, didn't expect it to be this simple. Thanks!
it should be10g+1.9kg= 1.91kg?
yeah thats what i was thinking
good video and thank you for the time that u gave for the videos.These videos r helping a lot....... From where cam i download these videos????
I know this is late but could comment on why it matters which object you choose to find mgh and which as (1/2)mv^2?
what is g and where you get g = 10m/s^2 from?
that's acceleration of gravity, which is 9.81 m/s^2..sometimes rounded to 10 m/s^2 for simplicity
Thank you for your video. My teacher does not know how to explain it as well as you did.
Dang I had a problem like this on one my exams and I outright bombed this question, kinda crazy how easy it really was all this time :(
At the end, you have v = sqrt(kx*x/2m) and v = 2 sqrt(kx*x/2m)
I'm confused.
Did you mean 894 m/s??
shouldnt it be 894 m/s?
Actually, if the block is an "attacker" you want most of the kinetic energy in the bullet "lost" in the block because it means more internal damage and deformation to the attacker!
this made way more sense. Thank you so much for this video !!!!!
incredibly helpful. Thanks for this!
You have a little mistake in it. The principal is ok, but you said that the bullet is 0,01kg and pendulum is 1,9kg and it equals 2kg. In fact it equals 1,91kg... Just to be clear ;)
That was what got me wondering and confused thanks for the clarification
Everything makes sense now... thank you!
THANK YOU FOR THIS! :D now I understand the tricky bullet-block thingy
doesn't 1.9 + .01 = 1.91
Initial Velocity of the Bullet 845.6m/s.
Thank Jesus H. Christ someone finally explained how to do this to me... I need a 4.0.... Failure is not an option.....
I can never thank you enough for this :'D!!!!!
You did it real awesome. Thanks a lot!
OH!! thank you!
than you
Thank you
Thank you.
thanks
holy crap you saved me thanks so much!
This video was very helpful!! :)
Thank you!
Thanks
after 11 years here i am
muchas gracias :))