An asteroid of mass 
is approaching earth, initially at a distance of 
with speed 
. It hits the earth with a speed 
and 
are radius and mass of earth), then:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Applying law of conservation of energy for asteroid at a distance 
and at earth's surface,
(i)
Now, 
and 
and 
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