two masses (M and m) are connected together by a pulley , two strings and a stretched spring with spring constant k as shown. assume that the string ,spring and pulley all have negligible mass and that friction in the pulley and on the surface can be neglected . find the amount by which the spring is stretched .
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Answer:
mMg
k(m+M)
(B)
2mmg
k(m+M)
(c) Mg
(D) (m+M)g
2k
for example this sum
Explanation:
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