Question

In a rescue scene during the 911 crisis, a helicopter of mass 6000 kg accelerates upwards at the rate of 0.50 m/s2 while lifting a 2500 kg piece of concrete. What is the upward force exerted by the rotors of the helicopter? What is the tension in the cable attaching the concrete to the helicopter

Answer 1

6000 + 2500 = 8500 kg = m

m g = weight = 9.81 * 8500

F = weight + m a
F = 9.81* 8500 + .5 * 8500 = 87,635 N

T = 9.81*2500 + .5 * 2500 = 25,775 N