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Lyrx [107]
2 years ago
10

A spring has a spring constant of 330 n/m. how far is the spring compressed when 150 newtons of force are used?

Physics
1 answer:
vitfil [10]2 years ago
7 0

Answer:

b. 0.45 meters

Explanation:

Given the following data;

Spring constant, k = 330 N/m

Force = 150 N

To find the extension of the spring;

Mathematically, the force exerted on a spring is given by the formula;

Force = spring constant * extension

Substituting into the formula, we have;

150 = 330 * extension

Extension, e = 150/330

Extension, e = 0.45 meters

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when do you use cos and sin in situations like these? is horizontal always cos and vertical always sin?
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Answer:

Time period for Simple pendulum, T=2\pi\sqrt{\frac{l}{g}

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Consider a small bob of mass m is tied to extensible string of length l that is fixed to rigid support. The bob is oscillating in the plane about verticle.

       Let \theta is the angle made by string with vertical  during oscillation.

Vertical component of the force on bob, F=-mg\sin\theta

Negative sign shows that its opposing the motion of bob.

Taking \theta as very small angle then, \sin\theta\sim\theta

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Since, pendulum is in hormonic motion,

as we know, F=-kx

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F=-m\omega^2x                   .........(2)

From equation (1) and (2)

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T=2\pi\sqrt{\frac{l}{g}}

6 0
3 years ago
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