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

Question

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.

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..

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.

Explanation / Answer

(1)

second option is correct

(2)

first option is correct

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