Register to reply 
I really need help...fast...I don't know what I'm doing please helpby BananaRed
Tags: helpfasti 
Share this thread: 
#1
May504, 07:52 PM

P: 8

Problem 1. A 5.00kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. The other end of the spring is held fixed. The spring is compressed 0.100m from equilibrium and released. The speed of the block is 1.20m/s when it passes the equilibrium position of the spring. The same experiment is now repeated with the frictionless surface replaced by a surface for which the coefficient of kinetic friction is 0.300. Determine the speed of the block at the eqilibrium position of the spring.
The second problem I have is: The reel has radius R and moment of inertia I. One end is connected to a spring of force constant k, and the other end is fastened to a cord wrapped around the reel. The reel axle and the incline are frictionless. The reel is wound counterclockwise so that the spring stretches a distance d from its unstretched position and is then released from rest. Find the angular speed of the reel when the spring is again unstretched. If someone could be help me I would really appreciate it 


#2
May504, 09:13 PM

P: 1,046

Don't post the same question several times. (It confuses us.)



Register to reply 
Related Discussions  
Lightspeed fast, then slowed, then fast again.  General Physics  3  
Please i need help and fast!  Differential Equations  3  
Need Help Fast  Introductory Physics Homework  22  
How fast?  Linear & Abstract Algebra  0 