33. A particle with acceleration a = -kv (where k is
constant and v is velocity) crosses origin with
velocity Voi^. Velocity of the particle at point (L,0) is
(a) Vo- kL .
(b) v + kL
(c) √Vo^2-kL^2
(d)√Vo^2+kL^2
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a = vdv/dx
-kv = vdv/dx
dv = -kdx
Integrating on both sides
v= -kx
Putting limits with x initual value =0, final value = L
v- Vo = -kL
v = Vo-kL
Explanation:
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