#15
calculate the mass of an object if a force of 20 n produces an acceleration of 4 m/s? .
80 kg
0.2 kg
5 kg
20 kg

It’s 5 kg because the formula is m=F/a, which is 20/4, and you’ll end up with 5 kg.

What even is this. where is the question

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.