Determining Balanced and Unbalanced Forces
A hydraulic jack is used to it a car in order to change a fire. The car exerts a force of 9.800 N toward the ground due
to the force of gravity
To begin to the car a hydraulic jack rust produce
of force
To keep the car in position once it is ined the jack rust produce
of force
3

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