Ezekielcassese
27.10.2019 •
Physics
The cable lifting an elevator is wrapped around a 1.2-m-diameter cylinder that is turned by the elevator's motor. the elevator is moving upward at a speed of 2.7m/s. it then slows to a stop, while the cylinder turns one complete revolution.
how long does it take for the elevator to stop?
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Ответ:
2C = Vin*t
t = 2C/Vin = 2.4*PI/2.7= 0.88*PI in sec.(2.79 approx)
Ответ: