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Two blocks (with masses 20.5 kg and 68 kg)
are connected by a string as shown. The pulley is frictionless and of negligible mass. The
coeﬃcient of kinetic friction between block
and machine is 0.257.
Find the change in the kinetic energy of the
block on the incline as it moves a distance of
15.4 m up the incline if the system starts from
rest.
 one year ago
 one year ago
Two blocks (with masses 20.5 kg and 68 kg) are connected by a string as shown. The pulley is frictionless and of negligible mass. The coeﬃcient of kinetic friction between block and machine is 0.257. Find the change in the kinetic energy of the block on the incline as it moves a distance of 15.4 m up the incline if the system starts from rest.
 one year ago
 one year ago

This Question is Closed

geerky42Best ResponseYou've already chosen the best response.0
first, I have to set up equation for sum of force, find net force, then multiply it by the distance, right?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
reported abusive  CHEATING !!!!
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
How is that cheat? I'm looking for a way to solve this problem.
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
And my way doesn't work.
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
So, report that problem as something you didn't solve
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
everything else is on the side. Understood?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
are you learning physics or building problem solving skills?
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
I just need help, I can't figure out how solve this problem... Thats why I am here... Isn't it what Openstudy is for?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
you can't cheat, this has to be stopped. Ask this question out of your knowledge of theory.
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
hey @greeky42 he is just trolling just ignore him
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
speak to me directly, like this: Aren't you trolling now?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
do not assume for me. Is that clear?
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
And my theory is apparently wrong, and I don't know why. And it's isn't cheating. You are obviously trolling, just like Yahoo! said.
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
intial K.E is 0 brcoz the body was at rest..)
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
It's not *YOUR* theory, it's your knowledge.
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
so, it's knowledge which is wrong, theory is always there.
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
@Yahoo! And \[W = x \sum F\] right?
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
My knowledge* Better, knowledge nazi?
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
Sorry to interrupt. I think it's better to stop the discussion on cheating here. And also, it's okay to seek help for your homework, as long as you're looking for a way to learn how to do it, not just copying others work. @ndwelsh I think we'd better have a private talk.
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
what is fun about substituting numbers to formulas? Aren't you striving for better degree? What are you supposed to learn? Physics, elementary principles of expressions and variables?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
@Callisto  who am I talking to now?
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
nw ur job is to Find Work done..By the Body on incline
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
Whatever you are trying to achieve in the future will unfold improperly. MARK MY WORDS NOW, bunch of puppets
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
@ndwelsh Like, you think I take physics for absolutely no reason? Sure... And you are here, trolling and claiming everyone is cheating... I think your life has been unfolded improperly.
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
Or another way to approach this is find accl
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
Hold on there horse, don't you say "trolling" regarding my name any more? It's your stupid cheating Wikipedia type of philosophy that explains your inadequacy better than my life.
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
answer now, what's wrong about using reference books better than theory books?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
Apparently I'm more knowledgable in this topic than you are
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
Yet, I don't need you, fortunately. There are knowledgable beings who are wise enough not to troll in this site and are willing to help others. What about you? Answer now. What do you do with your life? Trolling? Well, that's pathetically sad. Beside you are wasting your time.
 one year ago

geerky42Best ResponseYou've already chosen the best response.0
@Yahoo! How can I find acceleration? its seems that there is not enough information.
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
discussing my life at this point seems to be more off the topic.  THAT'S FOR ADMINS TO TAKE NOTE don't you SPIT THAT POISON IN MY FACE, fraking DOLL?
 one year ago

ndwelshBest ResponseYou've already chosen the best response.0
JUST GET THAT, CHEATER  BECOME PUNISHED FOR THAT IN FUTURE
 one year ago
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