Recent content by domo

I swear to you this is the original question, not moified. It was not from my texted book, it written exacly like that on a test I recently did. I agree with you guys the wording he chose is terrible. The confusing part was that the '' initial velocity'' of the ball is when it is thrown, it is...

Well it doesn't specify, it only says it's thrown, so I'm guessing someone threw it :P. That's all the information given; it is possible that this is a trick question... I just want to be sure.

No, as i understood the question the ball's initial velocity is 12.5m/s, but it does not say if it accelerates, or stays at a constant speed. Is the work done equal to the increase of Ek? That's the first I've heard of this...

Homework Statement A bowling ball of 7.21kg is thrown, it has an initial velocity of 12.5m, if his mouvement happens over 1.24m, what is the work of the bowling ball. Homework Equations W = FΔd W = F (Cos∅)Δd The Attempt at a Solution I think this is a trick question, but I'm...

What you said makes sense, however the spring is a part of the slope, therefore it's not seperately attached like your sketch

It is not :(, my textbook was able to come up with an answer for a similar question, just with different variables. Is it possible that all that I have to find is the height, using conservation of energy; then from there use sin to find the length hypotenuse? This seems to simple. For example...

I'm sorry, I just really don't understand how I'm supposed to solve this question. A bit more help would be appreciated. I'm clueless right now

The height was not given in the question, that's what really stumped me because I cannot calculate Eg..

Homework Statement (My textbooks are in french, so I'm translating, might get some terms wrong.. ) Starting from rest, a box of 31kg slides down a ramp inclined at an angle of 31 degrees, relative to the horizontal. At the bottom, the box hits a spring with a constant of 9.8 * 10^2N/m...