Recent content by coglon

I am stumped... very hard question: "A 70.0kg woman does a bungee jump. The length of the bungee cord is 5.00m and it has a spring constant of 122.08 N/m. Assume the gravitational field strength is 9.81 N/kg. a)What is the maximun distance the bungee cord will stretch and how far will the...

thank you for the replys, well it came down to deadline so I assume there was no friction what so ever and i ended up with something like this for a equation: W= F*d W= (9.81m/s^2*70)*d Substituted joules from breakfast as work: 450kj=(9.81m/s^2*70)*d (450kJ)/(9.81m/s^2*70)=d d=655m...

Energy Question -- Burning off Breakfast Im not to good at physics to begin with, and I've been having a lot of trouble with this question: "How many steps does it take to wear off your breakfast?" First of all this question doesn't give you any starting points with variables and such and I...

"Äy = v0t - 0.5gt^2 -69 = 5t - 0.5gt^2 -192 = 10t - 10t^2 t^2 - t - 19.2 = 0 t = 4.9 when the object reaches the top of the window." - you wrote so i really don't get your equation here... how does 0.5gt^2 give you 10t^2... even if you used 10 for gravity you would still only...

Hello... well I am just trying to prepare myself for my midterm which is on kinematics (1 and 2 dimensions) and dynamics. I've been trying a lot of problems, some i get some i don't... well anyways I was hoping that you guys could give me some key points and concepts that would be useful for my...

trying to study for a midterm with kinematics 1d 2d and dynamics Heres problem: A stone is thrown vertically downward from the top of a 96m building at a velocity of 5.0m/s. This stone is observed passing by a window that has a height of 2.0m. Assuming that the bottom of the window is 25m...

Dynamics -- Still stuck.. need ideas Fm=Fa+Fg 46^2=Fa+9.81^2 Fa=[squ]2019.7639 fa= 44.9m/s^2 F=Ma =46g*44.9m/s^2 =2065N Using Free body diagrams I believe I figured out that it would take... 43.8N downhill and 64.3N uphill ------------------ Im not sure if the...

IM in Phys.20 Got this question for an assignment. Tried it and got stuck. I really need help -------- When golfing, uphill and downhill putts present different levels of difficulty. Suppose a green has a 5.0 degree slope and the force of friction will be 0.10N...