Help with physics?

1 Answer
Douglas K.
Mar 26, 2018

Selection B

Explanation:

The initial conditions are:

#F_"spring" = F_"gravity"#

#kx_1 = g(M_1+M_2)#

solve for #x_1#

#x_1 = g/k(M_1+M_2)#

The new displacement, #x_2#, when #M_1# is removed is:

#x_2 = g/kM_2#

The amplitude is the difference from #x_1# to #x_2#:

#x_2-x_1= g/k(M_1+M_2)-g/kM_2#

#x_2-x_1 = g/kM_1#

This is selection B

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