Recent content by Predator

problem 2.61 "a homogenous, 4-ft-wide, 8-ft-long rectangular gate weighting 800lb..." also has a diagram

Ok for example, the section I'm doing right now is 2.8...(6th edition). I feel like it's pretty vague compared to the problems at the back (I suppose my main complaint is that I wish they had more variety of example problems worked out in the sections)

Hi, I'm an undergrad in biomedical engineering...a required class I'm taking right now is fluid mechanics...this is the textbook we use: https://www.amazon.com/dp/0470262842/?tag=pfamazon01-20 I'll be frank...I think it sucks...too vague, expects you to fill in a lot between the lines. I...

Wait, I do not understand the first part. "Start off backwards by doing a kinematics analysis. From a ramp height of 0.10 meters, what must its horizontal velocity be in order to achieve landing on the floor 0.505 meters away. Save this initial velocity value." How do I go about finding...

Sorry to resurrect this thread, but I have this exact same question on a problem due tonight. Only difference is my initial velocity is 41.0m/s and point P is 2.05m from the base of the launch point and the mass is 0.360kg. I used kinematics to find the maximum height: v^2 - v0^2 = 2*a*D 0...

Homework Statement A 0.33 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (with k = 485 N/m) whose other end is fixed. The mass has a kinetic energy of 10 J as it passes through its equilibrium position (the point at which the spring force...

Come on guys please...this problem is due in about 1 hour on Webassign. ANY help would be appreciated. I was referred to this problem because supposedly it was the best but I'm not really seeing much help...=/

OK, am I doing something? I never get any replies on any of my threads...can someone PLEASE help? I would really appreciate it. Thanks.

Homework Statement https://www.physicsforums.com/showthread.php?t=77424 It's that exact problem, except I need the latter parts to it. (a) What is the position of the block? m (b) What is the work that has been done on the block by the applied force? J (c) What is the work that...

Oh, I forgot the actual question haha. (a) Find the work done on the object by the force in the 4.00 interval (b) Find the average power due to the force during that interval. (c) Find the angle between vectors. di and df.

1. A force F = (2.80 N)i + (6.80 N)j + (7.05 N)k acts on a 2.00 kg mobile object that moves from an initial position of di = (3.05 m)i - (2.00 m)j + (5.00 m)k to a final position of df = -(5.00 m)i + (4.05 m)j + (7.00 m)k in 4.00 s. Homework Equations W = Fd The Attempt at a...