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Explain in elementary so it'll be easier for me to understand. Thank you

State whether the acceleration is positive, negati
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Answer #1

(A) x vs t is straight line.

SO velocity will constant.

Hence acceleration is zero.

(B) in which velocity is increasing.

a is positive.

(C) velocity is increasing in negative direction,

hecne a is negative.

(D) velocity is constant.

acceleration is zero.

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