Transcription of AP Physics 1- Work, Energy, & Power Practice Problems ...
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AP Physics 1- Work, Energy, & Power Practice Problems ...
AP Physics 1- work , energy , & Power Practice Problems answers fact : The amount of work done by a steady force is the amount of force multiplied by the distance an object moves parallel to that force: W = F x cos ( ). The units are , which equal a Joule (J). Positive work is done by a force parallel to an object s displacement. Negative work is done by a force antiparallel to an object s displacement. work is a scalar quantity so it can be positive or negative, but does not have a direction. The area under a force vs. displacement graph is work . Q1. A friend s car is stuck on the ice. You push down on the car to provide more friction for the tires (by way of increasing the normal force), allowing the car s tires to propel it forward 5 meters onto the less slippery ground. How much work do you do? (0) Q2. You push a crate up a ramp with a force of 10 N. Despite your pushing, the crate slides down the ramp 4 m. How much work did you do?
AP Physics 1- Work, Energy, & Power Practice Problems ANSWERS FACT: The amount of work done by a steady force is the amount of force multiplied by the distance an object moves parallel to that force: W = F x cos (θ). The units are N. m, which equal a Joule (J). Positive work is done by a force parallel to an object’s displacement.
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