Answer:
73 N
Explanation:
You want the maximum horizontal force that will not move a 10 kg block being pressed to a table with a force of 48 N, given the coefficient of static friction is 0.50.
The maximum static friction force is the product of the coefficient of friction and the normal force at the interface with the table. That normal force is the sum of the force due to gravity and the force being applied.
F = µ(mg +f) = 0.50(10·9.8 +48) = 0.50(146) = 73 . . . . newtons
The maximum horizontal force is 73 N.