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Makovka662 [10]
2 years ago
11

This diagram shows a stationary box sitting on the floor. Which statements about the other force exerted on the box are

Physics
1 answer:
Alex777 [14]2 years ago
5 0

It's a normal force exerted by the floor. It balances the gravitational force. Option A is correct. The normal force is balanced by the gravitational force.

<h3>What is the friction force?</h3>

It is a type of opposition force acting on the surface of the body that tries to oppose the motion of the body. its unit is Newton (N). Mathematically it is defined as the product of the coefficient of friction and normal reaction.

On resolving the given force and accelertaion in the different components and balancing the equation gets components in the y-direction.

The normal force is balanced by the gravitational force. It's a normal force exerted by the floor. It balances the gravitational force.

Hence, option A is correct.

To learn more about the friction force refer to the link;

brainly.com/question/1714663

#SPJ1

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A concrete block is hung from an ideal spring that has a force constant of 100 N/m . The spring stretches 0.129 m .A- What is th
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Answer:

1.31498 kg

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Explanation:

m = Mass of block

g = Acceleration due to gravity = 9.81 m/s²

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The force balance is

mg=kx\\\Rightarrow m=\dfrac{kx}{g}\\\Rightarrow m=\dfrac{100\times 0.129}{9.81}\\\Rightarrow m=1.31498\ kg

The mass of the block is 1.31498 kg

Time period is given by

T=2\pi\sqrt{\dfrac{m}{k}}\\\Rightarrow T=2\pi\sqrt{\dfrac{1.31498}{100}}\\\Rightarrow T=0.72050\ s

The period of oscillations is 0.72050 s

The time period does not depend on the acceleration due to gravity. It varies with the mass and the spring constant.

Hence, the time period would be the same

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