|Sep3-12, 10:05 AM||#1|
Conservation of Momentum
Two 140-kg satellites collide at an altitude where g=8.7m/s2
and the collision imparts an impulse of 1.8x105N.s to each. If
the collision lasts 120 ms, compare the collisional impulse to that
imparted by gravity. Your result should show why you can neglect
the external force of gravity.
Ans: The impulse imparted by gravity is
0.08% of the collision impulse.
Not sure how the gravity effect the collision since is tangential to the orbit. My line of thinking is that the forces due to gravity is cancelled out.
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