Question

6. In Activity #2, if you pull down on the DRFS sensor arm, the DRFS produces a positive reading. How can one justify the statement that the DRFS takes up to be the positive direction for the force the spring applies to the mass? (The correct answer uses Newton's Third Law but not F-ky.)

Answer 1

Thank you

Ane Newton's thirds law states that every action has aeaction in the same magnitude but in opposite direction. So Now, Lets take our question if we are applying force on DRES Sensor arm, and pulling it down, it means direction of force applied is downwards (negative), so As much force we apply, the DRES takes. 4. En the opposite direction force the spring applies to the mass This is why we get positive force Thank you