What is the sum of the forces in an action reaction pair?
a.
always less than zero
always greater than zero
b.
always equal to zero
sometimes less than zero
reset
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The correct answer should be b let me know if i’m wrong

Dshould be the right answer i think

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.