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KVPY SX SB Exam 2018 Question Paper
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© examsnet.com
Question : 34
Total: 120
Two balls of mass M and 2M are thrown horizontally with the same initial velocity
v
0
from top of a tall tower and experience a drag force of –kv(k > 0), where v is the instantaneous velocity. Then
the heavier ball will hit the ground further away than the lighter ball
the heavier ball will hit the ground closer than the lighter ball
both balls will hit the ground at the same point
both balls will hit the ground at the same time
Validate
Solution:
k
v
x
=
m
a
x
a
x
=
k
v
x
m
© examsnet.com
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