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runningirl
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Homework Statement
A 7000 kg helicopter accelerates upward at 0.70 m/s/s while lifting a 1000 kg car to a mountaintop for a TV commercial photo shoot.
a) What is the downward force exerted on the air by the rotors of the helicopter?
b) A steel cable is used to connect the car to the helicopter. What tension must the cable be able to withstand without breaking? (treat the mass of the cable as negligible)
Homework Equations
F=ma
The Attempt at a Solution
for part a, I used the f=ma equation and got the downward force to be 4900 N. But I'm not sure if I did it correctly.
I'm not sure about part b, do I use the force from part a and use the f=ma equation...?