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2 years ago

How do you know the force for an acceleration of zero?

Physics

1 answer:

Natali5045456 [20]2 years ago

5 0

F=ma

So a=F/m

if acceleration is zero, resultant force is also zero.

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Answer:

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Explanation:

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2 years ago

An object is hung on the end of a vertical spring and is released from rest with the spring 3 unstressed. If the object falls 3.

den301095 [7]

Answer:

The period of the resulting oscillatory motion is 0.20 s.

Explanation:

Given that,

Spring constant $k= 3\ N/m^2$

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If the object falls then the the gravitational potential change in to the elastic potential.

So,

$mgh=\dfrac{1}{2}kh^2$

$m=\dfrac{1}{2}\times\dfrac{kh}{g}$

Where,h = distance

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Put the value into the formula

$m=\dfrac{1\times3\times3.42\times10^{-2}}{2\times9.8}$

$m=5.235\times10^{-3}\ kg$

Using formula of time period

$T=\dfrac{1}{2\pi}\times\sqrt{\dfrac{m}{k}}$

Put the value into the formula

$T=\dfrac{1}{2\pi}\times\sqrt{\dfrac{5.235\times10^{-2}}{3}}$

$T=0.20\ sec$

Hence, The period of the resulting oscillatory motion is 0.20 s.

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2 years ago

How do I work out the percentage??

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9 Newtons on the right, because:

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