Question

**A block with mass m = 6.3 kg is attached to two springs
with spring constants k _{left} = 32 N/m and
k_{right} = 51 N/m. The block is pulled a distance x = 0.22
m to the left of its equilibrium position and released from
rest.**

1. Where is the block located, relative to equilibrium, at a time 1.07 s after it is released? (if the block is left of equilibrium give the answer as a negative value; if the block is right of equilibrium give the answer as a positive value)

2. What is the net force on the block at this time 1.07 s? (a negative force is to the left; a positive force is to the right)

3. What is the total energy stored in the system?

4. If the block had been given an initial push, how would the period of oscillation change?

- the period would increase

- the period would decrease

- the period would not change

Answer #1

A block with mass m = 4.9 kg is attached to two springs with
spring constants kleft = 30 N/m and kright =
55 N/m. The block is pulled a distance x = 0.22 m to the left of
its equilibrium position and released from rest.
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What is the magnitude of the net force on the block (the moment
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What is the effective spring constant of the two springs?
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What is the magnitude of the net force on the block (the moment
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Where is the block located, relative to equilibrium, at a time
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