Question

Science help please! Ty :]

According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?



A force is being applied to the mass


The mass must be changing.


A force was once applied, but is now not being applied.


No force was or is being applied to the mass.

Answer 1

A) A force is being applied to the mass

Step-by-step explanation:

I took the test and got this answer right. I'm 100% sure this is the right answer.

Answer 2

Apparently its A., check the link I have