Calcula la distancia recorrida por un nadador que avanza a 7km/h durante 45 segundos

Iwould have to say sorry i can't elaborate more. hope this though!

Ithink it is a. but i'm not 100 percent sure.

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.