A23-newton horizontal force westward and a 23-newton horizontal force eastward act concurrently on a 10-kilogram object on a frictionless surface. what is the magnitude of the object’s acceleration? 1) 0.0 meters/second^2 2) 1.0 meters/second^2 3) 2.3 meters/second^2 4) 1.5 meters/second^2

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600