Q6. A satellite is orbiting the Earth. Gravity is the only force acting. Why doe

ID: 1400359 • Letter: Q

Question

Q6. A satellite is orbiting the Earth. Gravity is the only force acting. Why doesn't it fall to the surface?

Q7. An object falls from a great height and hits the ground. Its mass is 100 kg and it is moving at a velocity of 20 m/s upon impact. After impact:

a. the Earth has no added velocity

b. the Earth is substantially altered in its orbit

c. the Earth feels nothing at all

d. the Earth has a small extra velocity to conserve momentum

Q8. Two balls are thrown upward. Masses are .01 kg and 2 kg. right after they have left your hand, the magnitude of the acceleration of each ball is:

a, .01 and 2

b. 10/.01 and 2 x .01

c. 10/.01 and 2/.01

d. 10

Q9. A momentum change of 10 kg x(times) m/s is observed. A force of 1000 n has been applied. What is the time interval that force was applied?

a. 1s

b. .01 s

c. .1 s

d. 10 s

Q10. A momentum change of 10 kg x(times) m/s is observed. A force of 1 N has been applied. For how long did that force act?

a. 1s

b. .01 s

c. .1 s

d. 10 s

Q6) It falls around the earth. here gravitational force is exactly equal to centripetal force.

That is why the staellite does not fall.

Q7) d. the Earth has a small extra velocity to conserve momentum

Q8) d. 10

Q9) b. .01 s

Q10) d. 10 s

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