- #1
Tanya Sharma
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- 135
Homework Statement
Homework Equations
The Attempt at a Solution
Suppose mass of platform is ##M_1## and that of coin is ##M_2## . The normal force between them is N .
EOM for platform (mass M1) = ##-kx+M_{1}g+N = M_{1}\ddot{x}##
EOM for coin(mass M2) = ##M_{2}g-N = M_{1}\ddot{x}##
This gives , ## N = \frac{kxM_2}{M_1+M_2} ## . The normal force vanishes when x= 0 ,i.e when the spring acquires its natural length .
I feel there is something wrong with my work . I would be grateful if somebody could help me with the problem.