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Sphinxa [80]
3 years ago
11

Sandra's is riding a bicycle at 10.0 meters/second. She slows down to 2.0 meters/second in 10 seconds her acceleration is

Physics
1 answer:
exis [7]3 years ago
5 0
10.2 is the answerssuaka
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An oscillating block - spring system has a mechanical energy of 1.10 j, and amplitude of 11.0 cm, and a maximum speed of 1.7 m/s
ioda
The total mechanical energy of the block-spring system is given by the sum of the potential energy and the kinetic energy of the block:
E=U+K= \frac{1}{2}kx^2 + \frac{1}{2}mv^2
where
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At the point of maximum displacement of the spring, the velocity of the block is zero: v=0, so the kinetic energy is zero and the mechanical energy is just potential energy of the spring:
E= \frac{1}{2}kA^2 (1)
where we used x=A, the amplitude (which is the maximum displacement of the spring).
Since we know 
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E = 1.10 J
We can re-arrange (1) to find the spring constant:
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2 years ago
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Answer:

Explanation:

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