Explanation:
The force of friction always acts in opposite direction to the force applied for sliding the body .
If the applied force is F , the force of friction is 5 N .
Then the resultant force is ( F - 5 )
The acceleration = net force / mass
Thus acceleration= ( F - 5 )/1 = F - 5
Therefore , the applied force decreases , by which the acceleration als decreases . By which the body will slow down .