Recent content by nvjnj

Ok, here is an attempt at the question... Let s2-s1=cvln(T2/T1)+Rln(V2/V1)----------(1)Polytropic Process : PVk=c rearranging and substituting gives : V2/V1=(T2/T1)(-1/k-1) Substituting to (1) gives; s2-s1=cvln(T2/T1)+Rln(T2/T1)(-1/k-1) Rearranging and simplifying ...

Homework Statement I have question on entropy for which I have no idea about, please help me out... a) Change of entropy of a gas is given with usual notations by: s2-s1=cvln(T2/T1)+Rln(V2/V1) using this relationship, show that for a polytropic process, entropy change can be expressed as...

Hey guys, thanks for all your effort, i got the answer just now so ignore the last post. I figured I was just going around substituting without a clear aim on getting μ. Thanks @ehild for pointing out that two momenta equations were unnecessary, helped a great deal.

Quote by ehild You're right, the friction is in the opposite direction, F(towards the wall direction). Can you please help me to evaluate μ?? I'm pretty overwhelmed with the no. of equations. I need to get μ=√5-2. P.S. I'm not quite sure how to transfer this post to the into. physics...

Homework Statement A uniform ladder of weight (W) is leaned across a rough wall and on a rough floor. The reaction at the wall is (S) with frictional force (G)(upward direction) while the reaction at the floor is (R) with frictional force (F)(away from the wall direction). Frictional forces...