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Question

In one dimension motion,
instantaneous speed v
satisfies 0 v<v0.


A
The motion has no turning points
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B
The displacement x in time
T satisfies - v0T < x < v0T
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C
The acceleration is always a
non- negative number.
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D
The displacement in time T must
always take non – negative values
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Solution

The correct option is B The displacement x in time
T satisfies - v0T < x < v0T

Answer) Instantaneous velocity, v=dxdt
x= displacement, t = time

x0dx=T0v0.dt

x= v0 (T-0)
x= v0T

The velocity is towards positive x direction,

Maximum displacement = + v0T

The velocity is towards negative x direction,

Maximum displacement = - v0T


Final answer : B

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