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Byju's Answer
Standard IX
Physics
Second Law of Motion
134.The decel...
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134.The deceleration experienced by a block of mass m with force is given by a= -bv where a= acceleration b= constant v0 = velocity at t=0 . now find velocity at time t
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Q.
The deceleration experienced by a block under a force is given by
a
=
−
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v
; where a
=
acceleration, v
=
velocity'; b
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′
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′
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is magnitude of velocity at
t
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Q.
The deceleration experienced by a moving motorboat after its engine is cut-off, is given by
d
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=
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k
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v
0
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after the cut-off is
Q.
The acceleration experienced by a moving boat after its engine is cut-off, of given by: a = -kv
3
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v
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is the magnitude of velocity at cut-off, then the magnitude of the velocity at time t after the cut-off is :-
Q.
The retardation experienced by moving motorboat after its engine is cut off at the instant
t
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0
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a
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−
α
v
3
where
α
is a positive constant with appropriate dimensions. If
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t
=
0
is
v
0
, then velocity as a function of time
is given as
Q.
A 15 kg mass is accelerated from rest with a force of 100 N. As it moves faster, friction and air resistance create an oppositively directed retrading force given by
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+
B
V
,
Where A = 25 N and B =
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m
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s
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