Question

If a block is in equilibrium the magnitude of the block's acceleration is

Answer 1

zero.

from newton's first law of motion

Answer 2

Answer:

zero.

Explanation:

The condition for an object to be in equilibrium is that there is no resulting force acting on it, in other words, that the force on the object is zero:

$F=0$

and by Newton's second law we know that

$F=ma$

where $m$ is the mass of the object, and $a$ its acceleration.

So combining the two things:

$F=ma=0$

⇒$ma=0$, This equation is fulfilled when $a=0$

Wich tells us that for the the block to be in equilibrium, the acceleration must be zero:

$a=0$