Recent content by TalibanNinja

[SIZE="7"]This problem has been solved

i have gotten to the step where finding the parallel component of the vector. am i supposed to use dot product to find projection.

i have found the direction vector of AC, but i don't know how they got the "r" value.

i found a solution her but it does not show all the steps and i can't understand it. http://www.scribd.com/doc/48470460/113/Problem-2-116

if i take the magnitude of the rod AC then subtract 3 m will i be able to get point B. then i would be able to find the vector components of force BD.

how did you get those numbers.

Homework Statement Determine the components of F that act along rod AC and perpendicular to it. Point B is locateda distance f along the rod from end C http://imgur.com/iGJkN Given: F = 600 N a = 4 m b = 6 m c = 4 m d = 3 m e = 4 m f = 3 m I have no clue where to start. please help! Homework...

could you explain what bold r means, and what r means

i don't understand what the "r" represents.

Homework Statement this website has the question listed as #2-116. the solution shown is extremely complicated and i ask thet someone please help. http://www.scribd.com/doc/48470460/113/Problem-2-116 Homework Equations The Attempt at a Solution

Homework Statement Using a swimming pool, two students decide to test the water by setting up an interference pattern at one end of the 50 m pool. They sit 2.0 m apart and create waves by tapping their right foot, in phase with each other, onto the water at a frequency of 1.0 Hz. The speed of...

i've tried the question using the knowledge i have but I am not sure.

Homework Statement A driver carelessly ignores the reduced speed limit of 40.0 km/h in a school zone and continues at 65 km/h. Assuming a good reaction time of 0.80 s, how many more metres will it take him to stop than if he had reduced his speed? Assume 2000kg car has a constant braking...

i have found the acceleration using your suggestion but now i don't know how to find the speed of the box. the acceleration that is calculated was when the spring had recoiled and pushed the box out. F=kx (82N/m)(0.007M)/(0.087kg)=a a=6.597 m/s^2

Homework Statement An 87-g box is attached to a spring with a force constant of 82 N/m. The spring is compressed 11 cm from the equilibrium position and the system is released. (a) What is the speed of the box when the spring is stretched by 7.0 cm passing the equilibrium? (b) What is the...