3. A spring scale shows a net force of 0.6 N acting on a 2.8-kg mass. What happens to the acceleration of the object if the net force is decreased to 0.3 N?
To find the acceleration of an object, you can use Newton's second law, which states that the acceleration of an object is equal to the net force divided by the mass. Mathematically, this is represented as:
a = F/m
where a is the acceleration, F is the net force, and m is the mass of the object.
Given that the net force acting on the object is 0.6 N and the mass is 2.8 kg, we can substitute these values into the equation to find the initial acceleration:
a = 0.6 N / 2.8 kg
a = 0.214 m/s^2
Now, if the net force is decreased to 0.3 N, we can use the same equation to find the new acceleration:
a' = 0.3 N / 2.8 kg
a' = 0.107 m/s^2
Therefore, when the net force is decreased to 0.3 N, the acceleration of the object will also decrease to 0.107 m/s^2.