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3 years ago

15

Choose all the answers that apply. Which of the following forces require physical contact? tension, air resistance, friction, ma

gnetic force, applied force

1 answer:

svet-max [94.6K]3 years ago

8 0

Answer:

I belive it would be friction applied force and tension

Explanation:

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To solve this problem we will apply the concepts related to the Force of gravity given by Newton's second law (which defines the weight of an object) and at the same time we will apply the Hooke relation that talks about the strength of a body in a system with spring.

The extension of the spring due to the weight of the object on Earth is 0.3m, then

$F_k = F_{W,E}$

$kx_1 = mg$

The extension of the spring due to the weight of the object on Moon is a value of $x_2$ , then

$kx_2 = mg_m$

Recall that gravity on the moon is a sixth of Earth's gravity.

$kx_2 = m\frac{g}{6}$

$kx_2 = \frac{1}{6} mg$

$kx_2 = \frac{1}{6} kx_1$

$x_2 = \frac{1}{6} x_1$

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Therefore the displacement of the mass on the spring on Moon is 0.05m

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