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For a particle in one dimensional motion, which of the following is true? a) Zero speed at any instant may have zero acceleration at the instant b) Zero speed may have non-zero velocity c) Constant speed must have zero acceleration d) Positive value of acceleration must be speeding up

For a particle in one dimensional motion, which of the following is true? a) Zero speed at any instant may have zero acceleration at the instant b) Zero speed may have non-zero velocity c) Constant speed must have zero acceleration d) Positive value of acceleration must be speeding up

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For a particle in one dimensional motion, which of the following is true?

a) Zero speed at any instant may have zero acceleration at the instant

b) Zero speed may have non-zero velocity

c) Constant speed must have zero acceleration

d) Positive value of acceleration must be speeding up

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