Question

4. Consider a person (m=50 kg) pulling the cable of the elevator (M=25 kg) as illustrated in Figure 4, calculate the force F he needs to apply for setting himself and the elevator in the following motion: (a) Stationary (b) Going up with constant velocity v=1 m/s (c) Going down with constant velocity v=1 m/s (d) Going up with acceleration a=1 ms-2 Note. The masses of the pulley and the cable are negligible.

          4. Consider a person (m=50 kg) pulling the cable of the elevator (M=25 kg) as illustrated in Figure 4, calculate the force F he needs to apply for setting himself and the elevator in the following motion:
(a) Stationary
(b) Going up with constant velocity v=1 m/s
(c) Going down with constant velocity v=1 m/s
(d) Going up with acceleration a=1 ms-2
Note. The masses of the pulley and the cable are negligible.

4. Consider a person (m=50 kg) pulling the cable of the elevator (M=25 kg) as illustrated in Figure 4, calculate the force F he needs to apply for setting himself and the elevator in the following motion:
(a) Stationary
(b) Going up with constant velocity v=1 m/s
(c) Going down with constant velocity v=1 m/s
(d) Going up with acceleration a=1 ms-2
Note. The masses of the pulley and the cable are negligible.

Added by Cristian S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Penny Riley

04/06/2023

Step 1

(a) Stationary: In this case, the tension in the cable is equal to the weight of the elevator. Show more…

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Consider a person (m=50 kg) pulling the cable of the elevator (M=25 kg) as illustrated in Figure 4, calculate the force F he needs to apply for setting himself and the elevator in the following motion: (a) Stationary (b) Going up with constant velocity v=1 m/s (c) Going down with constant velocity v=1 m/s (d) Going up with acceleration a=1 ms-2 Note. The masses of the pulley and the cable are negligible.