
#1
Feb2013, 02:07 AM

P: 2

1. The problem statement, all variables and given/known data
Block slides down a 1 meter ramp at a 30 degree angle. The coefficient of kinetic friction is 0.4 what is the block's speed at the bottom of the ramp? 2. Relevant equations kineticFriction force = coefficient of friction X normal Force normal Force = force of gravity + mass*acceleration 3. The attempt at a solution I've tried the problem but i get stuck of finding the normal force required to find the kinetic friction force. Can someone guide me a little bit please... thank you in advanced 



#2
Feb2013, 02:20 AM

P: 358

The normal force and the component of the weight of the block need to cancel each other out.




#3
Feb2013, 02:26 AM

P: 2

solved!! the professor gave us a formula but I copied it wrong... just for reference the formula which gave acceleration was a = g[sinO  UkcosO]




#4
Feb2013, 06:33 AM

P: 358

Velocity of sliding object
Physics not about memorizing formulas, it is about deriving them from first principles, so can you?



Register to reply 
Related Discussions  
Sliding object against air resistance, working out when object comes to rest  Advanced Physics Homework  0  
Sliding Object After a Push  Introductory Physics Homework  2  
Velocity of object sliding down incline, given gravity and the incline's height  Introductory Physics Homework  3  
Normal force  object sliding with velocity  Introductory Physics Homework  9  
friction problem (unlubricated object sliding over another object) need some help  Mechanical Engineering  0 