If you feel you are about to have a collision, you should calm yourself down and focus on the situation. It takes a second to change the happening and presence of mind is a must. It is normal to have mixed emotions, but being calm is best way to do. Hope this answers your question.
This is a case of elastic collision.
The equation is m1v1i+m2v2i=m1v1f+m2v2f
Substituting we get:
(8)(5)+(5.28)(-1.65)=(8)(0.5)+(5.28)(v2f)
V2f=5.168m/s
Answer:
c. The particle is moving in a positive direction, and its speed is decreasing.
Answer:
F = 18195.59 N or F = 18196 rounded up
Explanation:
force = GMm/d^2
G = 6.67x10^-11
M = 5.98x10^24 kg
m = 2170kg
d = 6370000 + 527000 = 6897000m
putting all values (6.67x10^-11)(5.98x10^24)(2170)/(6897000^2) = 18195.59....
