A motorized winch is shown in Figure $10\mathrm{.}21.$ The motor supplies a torque of $10$ N m at $1400$ rpm$.$ The winch drum rotates at $70$ rpm and has a diameter of $220$ mm$.$ The overall efficiency of the winch is $80\%.$ Determine the:

a$)$ number of teeth on gear A

b$)$ power input to the winch

c$)$ power output at the drum

d$)$ load being raised.

Figure $10\mathrm{.}21$ Figure for question 10.7.4-motorized torised winch.

 

Motor Drum 11- B C Figure 10.21 Figure for question 10.7.4-motorised winch. Load = 50 =75 4= 30 t=20 4= 100