Asteady 45 n horizontal force is applied to a 15 kg object a table. the object slides against a friction force of 30 n. calculate the acceleration of the object in m/s.

The net force on an object subject to friction is equal to the sum of the applied force and the frictional force.

Mathematically,

Here, m is mass of object and a is its acceleration. We take frictional force negative because it opposes the motion of object.

Given, , and

Substituting these values in above formula, we get

.

Thus, the acceleration of an object is

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6