76308
AssignmentMultiple Dropdowns

Introduction to Forces

Question 76308 • WA-Physical Science B

A hydraulic jack is used to lift a car in order to change a tire. The car exerts a force of 9,800 N toward the ground due to the force of gravity.

Answer
To begin to lift the car, a hydraulic jack must produce of force.:

more than 9,800 N

To keep the car in position once it is lifted, the jack must produce of force.:

exactly 9,800 N

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