Question

if the initial velocity is zero then the force acting is
a. Retarding
b. Acceleration
c. Both
d. None

Answer 1

Accelerating

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Answer 2

As we know
$f = ma \\ f = \frac{m(v - u)}{t}$
retardation= -(a)
but if initial velocity is 0 then a will be positive
$f = \frac{mv}{t}$
Hence it will accelarate