What type of questions should you ask yourself when referring to case studies?

The answer is a i think

The answer is -6hope this

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.

The fuzzy edges of shadows are a result of  diffraction