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Step gently onto a bathroom scale, read the dial, and then jump from a chair onto the same scale.

1) Does the dial show different readings in the two cases? Choose the correct answer and explanation.

No, when you jump the scale shows the same value as when you gently step onto the scale.
Yes, when you jump the scale shows a higher number at first. The reading then oscillates and settles to the same value as when you gently step onto the scale.
Yes, when you jump the scale shows a higher number at first. The reading then oscillates and settles to a lower value than when you gently step onto the scale.
Yes, when you jump the scale shows a lower number at first. The reading then oscillates and settles to the same value as when you gently step onto the scale.

2)Has the gravitational force exerted by Earth on you changed? Choose the correct answer and explanation..

Yes, the magnitude of the gravitational force exerted by Earth on you has changed when you jump, because you have a downward acceleration.
No, the magnitude of the gravitational force exerted by Earth on you has not changed.
Yes, the magnitude of the gravitational force exerted by Earth on you has changed when you jump, because you have a downward velocity.

Respuesta :

Answer:

1)The second is correct. The scale shows a higher value initially and after a short time it shows the same value of rising gently

2) The correct answer is the first does not change

Explanation:

1) Let's look for the solution of the problem before seeing the statements given

We use Newton's second law

     Fb - w = ma

     Fb = ma + mg

     Fb = m (a + g)

When you go up smoothly, the acceleration a is zero, but when you go up sharply it is different from zero, after a short time it reaches zero and the strength of the bastecía is the same as at the beginning.

Affirmations

The second is correct. The scale shows a higher value initially and after a short time it shows the same value of rising gently

2) changes the value of g

The value of the acceleration of gravity depends on the mass and radius of the Earth only, not the conditions or movements of the person. The value of g does not change

The correct answer is the first does not change

adefioyelaoye
  • Yes, when you jump the scale shows a higher number at first. The reading then oscillates and settles to the same value as when you gently step onto the scale.
  • No, the magnitude of the gravitational force exerted by Earth on you has not changed.

What is a Scale?

This is defined as an instrument which is used for measuring substances, objects etc.

The magnitude of the gravitational force exerted by Earth on you doesn't change because it is dependent on the mass and radius of the Earth only.

Read more about Gravitational force here https://brainly.com/question/72250

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