(5) A 6500-kg helicopter accelerates upward at 0.60 m/s² while lifting a 1200-kg car. (a) What is the lift force exerted by the air on the rotors? (b) What is the tension in the cable (ignore its mass) that connects the car to the helicopter?

I’ll give you some hints: The mass of the helicopter is irrelevant to the solution. All you needs is the mass of the load (the car) and the acceleration to solve the problem. Remember that the helicopter is the motive power and the cable is attached below it. Tension is directly related to force. Now go find the equations in the text, plug and crank.

Wow, you even left the homework number in place…

Hahahahaha I wish I had fluther to do my Homework for me…. maybe I will go back for my Masters.

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what I don’t understand is why this is a “great question”. It’s totally obvious he’s trying to get someone else to do his homework for him

Lift force on the rotors is equal to the upward acceleration of the helecopter as well as that on the Car.They have the same acceleration as they move together.
For the first part of the question take the combined weight and the resultant acceleration.
Acceleration due to gravity is 9.8m/sec^2 and added to that there is acceleration so both the acceleration add up to give the resultant accelration.Now I guess it’s easier for you to figure out the net force.

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Regarding the second part,
There is no effect of the chopper’s mass on the rope.The effect is just due to the mass of the Car.So T= the total force exerted by the car on the rope.Figure it out.
The hint is good enough.