6. Intro to Forces (Dynamics)
Vertical Forces & Acceleration
4:50 minutes
Problem 6h
Textbook Question
Textbook QuestionZach, whose mass is 80 kg, is in an elevator descending at 10 m/s. The elevator takes 3.0 s to brake to a stop at the first floor. (a) What is Zach's weight before the elevator starts braking?
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