A 7700 -kg helicopter accelerates upward at0.80 m/s^2 while lifting a 1300 -kg f

Question

A 7700 -kg helicopter accelerates upward at0.80 m/s^2 while lifting a 1300 -kg frame at aconstruction site. What is the lift force exerted by the air on the helicopterrotors? What is the tension in the cable (ignore its mass) thatconnects the frame to the helicopter? What force does the cable exert on the helicopter? A 7700 -kg helicopter accelerates upward at0.80 m/s^2 while lifting a 1300 -kg frame at aconstruction site. What is the lift force exerted by the air on the helicopterrotors? What is the tension in the cable (ignore its mass) thatconnects the frame to the helicopter? What force does the cable exert on the helicopter?

Explanation / Answer

lift force=F F-7700*9.8-1300*9.8=7700*0.8 F=94360 N tension in the string=T T=F=94360 N force exerted on the helicopter=94360 N

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