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The law of motion of a body moving along...

The law of motion of a body moving along a straight line is `x=1/2vt`,
x being its distance from a fixed point on the line at time t and v is its
velocity there. Then

A

(a) acceleration f varies directly with x

B

(b) acceleration f varies inversely with x

C

(c) acceleration f is constant

D

(d) acceleration f varies directly with t

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The correct Answer is:
A
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