Question

A 7180-kg helicopter accelerates upward at 0.80 m/s2 while lifting a 1080-kg frame at a construction site, Fig. 4-68. (a)What is the lift force exerted by the air on the helicopter rotors? (b) What is the tension in the cable (ignore its mass) which connects the frame to the helicopter? (c) What force does the cable exert on the helicopter?

Answer 1

13250 N is the tension's force. Helicopter mass, m1, is 7180 kg. Lif...... accelerates uphill at 0.80 while lifting a 1080 kg frame at a building site (acceleration, a = 0.80 m/s2).

Newton's second law states that: F L-(m+M)g=(m+M)a, F L=(m+M)(g+a)==(1250+7650)(9.8+0.8)=94340.text{ N}. force

F L=(m+M)(g+a)= =(1250+7650)(9.8+0.8)= 94340 N, where F L=(m+M)(g+a)=

b) What is the strain in the cable connecting the frame to the wall (again, disregarding its mass

T=m(g+a)=13250; text; N; T-mg=ma.

T=m(g+a)=13250 N and T=mg=ma.

13250 N is the tension's force.

Helicopter mass, m1, is 7180 kg. a = 0.80 m/s2 for acceleration a) Lift force, FL = 7180 kg helicopter lifts a 1080 kilogram frame at a building site while accelerating upward at 0.80 m/s2. (a) How much lift power does the air have on the helicopter Helicopter mass, m1, is 7180 kg. a = 0.80 m/s2 for acceleration.

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