spring is con ength, whe rest and acc the silding block A. The has an initial value of 200 ft/sec² and then decreases linearly with the x-movement of the block, reaching zero when the spring regains its original 12.2-in. length. Calculate the time t for the block to go (a) 2.75 in. and (b) 5.5 in. 6.7" -12.2"

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Chapter13: Vibrations And Waves
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Problem 7P: A spring 1.50 m long with force constant 475 N/m is hung from the ceiling of an elevator, and a...
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The 12.2-in. spring is compressed to a 6.7-in. length, where it is released from rest and accelerates the sliding block A. The acceleration
has an initial value of 200 ft/sec² and then decreases linearly with the x-movement of the block, reaching zero when the spring regains
its original 12.2-in. length. Calculate the time t for the block to go (a) 2.75 in. and (b) 5.5 in.
6.7"
-12.2"
wwwwwwww
Answers:
To go 2.75 in., t=
To go 5.5 in.,
t =
111x
0.50
0.08
sec
sec
Transcribed Image Text:The 12.2-in. spring is compressed to a 6.7-in. length, where it is released from rest and accelerates the sliding block A. The acceleration has an initial value of 200 ft/sec² and then decreases linearly with the x-movement of the block, reaching zero when the spring regains its original 12.2-in. length. Calculate the time t for the block to go (a) 2.75 in. and (b) 5.5 in. 6.7" -12.2" wwwwwwww Answers: To go 2.75 in., t= To go 5.5 in., t = 111x 0.50 0.08 sec sec
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