2.5 kg because you cant change the weight of the rock
Decreased it because you can float a lot
Answer:
<h2>12 m/s²</h2>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula

f is the force
m is the mass
From the question
f = 6000 N
m = 500 kg
We have

We have the final answer as
<h3>12 m/s²</h3>
Hope this helps you