An engine supplies a constant power ‘p’ to automobile of mass m starting from rest. At an instant of time t

 An engine supplies a constant power ‘p’ to the automobile of mass m starting from rest. At an instant of time t, then which of the following is true?

(a)

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(b)

(c)

(d) Both (a) and (b)

Answer: (d) Both (a) and (b)