please answer it please please please
Attachments:
Answers
Answered by
0
Weight = 80 kg * 9.81 m/s^2 = 784.8 N.
The fact that the scale reads 900N, which is more that the person weight means that the descending elevator is in a state of deceleration ( upward acceleration ).
Use, F = m * a.
900 N - 784.8 N = 80 kg * a -------> a = 115.2 N / 80 kg = 1.44 m/s^2 upward.
Consider the person and the elevator .
T is the tension in the cable
Total mass = 1080 kg
Total weight = 1080 kg * 9.81 m/s^2 = 10594.8 N.
F = m * a.
T - 10594.8 N = 1080 kg * 1.44 m/s^2
T = 10594.8 N + 1555.2 N = 12150 N
Similar questions