A satellite is in sufficiently low obit so that it encounter air drag and if orbit changes from r to r - Δ Δ r. Find the change in orbital velocity and change in PE.
A
B
C
D
None
Text Solution
Verified by ExpertsThe correct answer is:
A
v 0 
; v 0 ' = 
= 
Δ Δ v = v 0 ' – v 0 = 
Δ Δ U = -2 Δ Δ KE = - 
[v 0 ' 2 - v 0 2 ]
= m 
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