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Different mass crates are placed on top of springs of uncompressedlength and stiffness . The crates...

Different mass crates are placed on top of springs of uncompressedlength and stiffness . The crates are released and the springscompress to a length before bringing the crates back up to theiroriginal positions.

Rank the time required for the crates toreturn to their initial positions from largest to smallest.
Rank from largest to smallest. Torank items as equivalent, overlap them.

A
k=15N/m
L=10 cm
Lo=15 cm

B
k=10N/m
L=5 cm
Lo=20 cm

C
k=10N/m
L=5 cm
Lo=10 cm

D
k=20N/m
L=5 cm
Lo=15 cm

E
k=5N/m
L=10 cm
Lo=20 cm

F
k=5N/m
L=5 cm
Lo=10 cm
0 0
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Answer #1

You need 2 equations:

therefore,

--->   (a is in this case gravity (-9.8m/s^2))

1) m = -(10)*(0.15-0.10)/(-9.8) = 0.05102 kg

repeat same formula for the others.

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