Recent content by fluvly

I was thinking of considering the whole thing like a big container of water, with the top of it open and with the water level stuck at the level of the second floor. Then letting the water run from the washbasin at the ground floor could be like making a hole on the container... it's the more...

Homework Statement There is a building with 3 floors: ground floor, first floor and second floor. Ground floor is at level zero, first floor is 3 meters above it and second floor is 6 meters above the ground level. The hydraulic system is made in a way that water barely reaches the second...

Homework Statement It's a direct translation from italian, forgive the mistakes: A container with thermically insulating walls has 2 parts, part A which contains a quantity m(A)=1230 g of water at a temperature of 15.6 degrees Celsius, and part B which contains a quantity m(B)=830 g of...

another try... gravitational force after collision: 15 Kg * 9.8 m/s2= 147N vertical drawing force (it stays constant) : 9.6N normal force + vert. force - grav. force =0 normal force= grav.force - vert.force = 147N - 9.6N=137.4N frictional force= 137.4N * 0.15= 20.6N horizontal force...

... ok, then it would be: 7.5 x 10.5 = 15v v=5.25 m/s ? is it so... I don't know, simple? That the speed just becomes half the initial one? :) well, good, anyway :) the rest I think it's quite easy (correct me if I am wrong): The normal force added is 7.5*9.8 = 73.57 N and the frictional...

thanks for the fast reply Not really, I tried to study it, but with no good results. And all the examples on the book are about collisions on the same axis. Doesn't that rule apply only when there are no external forces? Before the collision the frictional force compensates the drawing...

Forgive the probable incorrect use of words of physics, I'm not used to writing them in english :) Hope you will understand anyway. Object number 1 is moving horizontally (left to right) with Uniform rectilinear motion at the speed of 10.5 m/s. Its mass is 7.5 Kg. The coefficient of dynamic...