Recent content by anthroxy

I solved thanks anyways

Homework Statement a) We have a folded box shaped like a rectangle with the length b and width a. The box has four squares that we fold up, these squares are the height of the box x. Choose a couple of values for length b and width a and decide what x has to be in order for the box to have the...

Homework Statement A boy on a roller coaster dropped his shoe after 0,10. How long time will it take until his shoe hits the ground. The roller coasters acceleration is 34,37m/s^2 Homework Equations First i started looking at a = delta v / delta t The Attempt at a Solution I...

Yeah i completely agree with you, and that's what i though was so strange, since i didn't take account to the wind and don't really get how I'm supposed to do it either. Everything is completely copied from the book, haven't missed anything as far as i see

But there is a breaking force of 28N and isn't there a friction force on top of that? i thought that once i had the friction force i would add it together with the breaking force which would be the total amount of force slowing down the wheel and then multiply that force with the distance...

Question Alex i sitting on a motorcycle, the wheel goes makes 95 turns per minute. The distance between center of the wheel to the wheels end is 0,25m (which gives us the radius) but is affected by a breaking force of 28N, how big is the work of friktion during the 45min? and what is the...

So if we neglect air resistance we can more or less say that we lose PE at the same rate as we gain KE, thanks a lot!

Hi i was just wondering if a object loses potential energy at the same rate as it gains kinetic engergy. Does the object have to be in free fall and are all the resulting forces equal to zero at this point?

So the first has the greatest force, ah yeah that makes perfect sense thanks a lot good explanation!

If i tie a string to a object number one and tie a string between object two and three and then pull the first object so the others just follow. Where would the force be greatest between me and the first or between the 2nd and the 3rd object or if it is the same at both places? I have gone...

Okey i guess i'll try to explain without showing my diagram. Since we know the weight of the object we can use Newtons second law to find out the Fg Fg = ma which in this case was Fg = 0,45 * 9,82 which gives us Fg= 4,419 From there i used my diagram to find out the tension on the...

Is it possible to post the free body diagram that i made, thought i could do it through paint but the file became to big

Yeah that far i understood but i think my problem lies in drawing the full body diagram, which i guess would be kinda hard for you to explain =/

Hi there i kinda got stuck on a couple of questions in my course book and don't understand how i am supposed to do i guess i'll focus on the first one now and post the second later Alexander is running around with his kite, the string is 25m long and the kite weighs 450g a) The string is...