jongun6k jongun6k

23-10-2021
Physics

contestada

9. An elevator uses 650.0 watts to lift 5 passengers 30.0 m in 15.0 seconds. What is the force needed to lift the elevator and the passengers?

Respuesta :

24-10-2021

Hi there!

We can begin by calculating the total WORK done using the equation:

Power · time = Work

650 · 15 = 9750 J

We know that:

Work = Force · displacement (W = Fd), so:

W/d = F

9750/30 = 325 N

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