Question

a 20 kg object is moving with a constant velocity. what can be said about the forces acting on the object?
the net force is equal to the weight of the object
the net force is 0 n
the net force is equal to the normal force
the net force is 20 n

Explanation:

Step1: Recall Newton's second law

Newton's second law is \(F_{net} = ma\).

Step2: Analyze acceleration for constant velocity

When an object has a constant velocity, its acceleration \(a = 0\).

Step3: Calculate net force

Substitute \(a = 0\) into \(F_{net}=ma\). So \(F_{net}=m\times0 = 0\).

Answer:

The net force is \(0\ N\)