25) There is a box of mass 2 kilograms placed on a scale in an elevator. The scale reads 20 newtons when the elevator is stationary. We need to figure out the reading on the scale if the elevator was accelerating upward at 2 m/s^2. Firstly, it is crucial to know that a scale measures the normal force acting on an object, not the weight. We can set up an equation that is the sum of the forces.
Now, all we need to do is plug in our given values and solve for the normal force.
Answer: B
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