# Block B is being pulled forward by a force of 100 N across a flat, frictionless

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Block B is being pulled forward by a force of 100 N across a flat, frictionless surface. Of the four arrows shown in the diagram above, which, if any, should be removed to make an accurate free-body diagram for block B?

10. A cat has a mass of 4.6 kg. What is its weight on Earth's surface?

11. What force causes you to move upward when you jump into the air?

May 18th, 2015

You can ask back if you have any doubt. I am here.

May 18th, 2015

these are the answer choices for 11

a. You push down on Earth with a force greater than your weight, so Earth pushes back on you with a force that is equal in magnitude but opposite in direction.

b. You push down on Earth, and because Earth is so large, it pushes back on you with a force that is greater than the downward force you exerted on it.

c. You push down on Earth, which causes it to move slightly down under your feet and give you the sensation that you have risen.

d. You push down on Earth, but because Earth is stationary, Earth cannot exert an upward force on you so internal forces from your muscles act on your body itself.

May 18th, 2015

give me 2-5 minutes to read the options carefully.

May 18th, 2015

ok

May 18th, 2015

correct choice is 'a' for this.

May 18th, 2015

Did you get it?

May 18th, 2015

yes thank you i'll rate you 5 stars.

May 18th, 2015

You are most welcome :)

May 18th, 2015

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May 18th, 2015
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May 18th, 2015
Nov 21st, 2017
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