If the net external force on a body is zero, its acceleration:

#### Solution

Newton's 2nd law states that force on a body is equal to mass times acceleration. For a zero external force, there will be a zero acceleration for body. Hence, acceleration will be zero for no net external force.

- Amust be equal to zero
- Bmay be equal to zero
- Cmust be non-zero
- Dmust be equal to $$g$$