1again..thanks rickde...![1]
Q : A point mass m and charge q is connected with a massless spring of natural length l.Initially spring is in its natural length.If a horizontal UNIFORM electric field E is switched on , :
i. Find the separation of the point mass and wall at EQUILIBRIUM position of m . [ ans : l + qEk ]
ii. Find the maximum separation of the point mass and wall. [ ans : l + 2qEk ]
MY DOUBT : I JUST CANT UNDERSTAND HOW TO SOLVE DIFFERENTLY FOR MAX SEPERATION AND FOR EQUILIBRIUM POSITION ? PLS HELP ME...JUST GIVE ME THE CONCEPT..
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3 Answers
1for equilibrium ...balance forces
for max elongation....use work energy theorem..v=0 at max elongation