# physics

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

1. 👍 0
2. 👎 0
3. 👁 588
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

1. 👍 0
2. 👎 0
posted by Damon

## Similar Questions

1. ### Physics

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

asked by Corey Brown on June 10, 2014
2. ### Physics

A 4610 kg helicopter accelerated upwards at 2 m/s^2. What lift force is exerted by the air on the propellers? I was given this reply: The air force on the prop blades is what accelerates the helicopter upward. Use good old

asked by Einstein on December 15, 2007
3. ### physics

A Helicopter lifts a Gorrila With Weight 50000kg on String a and on String B a Bunch of Bananas Mass 2000kg , Calculate the Acceleration of the Bunch of Bananas. The helicopter accelerates upwards 1m.s^-2

asked by Okwa Nini on March 4, 2014
4. ### physics

helicopter at rest, uniformly accelerates upwards. After 25s flare fired horizontally from the heli. flare measured to 8s to reach the ground. a)What is the acceleration of the helicopter b) height of the helicopter the instant

asked by Anonymous on October 31, 2012
5. ### College Physics

During a rescue operation, a 5600-kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 69 m/s. What mass of air must pass through the blades every second to produce enough thrust for

asked by Kyle on March 16, 2010
1. ### Physics

During a rescue operation, a 5350 kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 59.0 m/s. What mass of air must pass through the blades every second to produce enough thrust for

asked by Carden on April 25, 2010
2. ### Physics

During a rescue operation, a 5350 kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 59.0 m/s. What mass of air must pass through the blades every second to produce enough thrust for

asked by Robert on April 29, 2010
3. ### physics

in a daring rescue by helicopter, two men with a combined mass of 172 kg are lifted to safety. a)If the helicopter lifts the menstraight up with constant acceleration, is the tension in the rescue cablegreater than, less than, or

asked by Jim on March 8, 2010
4. ### Physics

Hi I really need this question answer as a check: a helicopter holding a 70 kilogram package suspended from a rope 5.0 meters long accelerates upward at a rate of 5.2 m/s^2. a. Determine tension on the rope. b. When the upward

asked by Rahul on December 9, 2010
5. ### Physics

A 7900- helicopter accelerates upward at 0.90 while lifting a 1100- frame at a construction site. 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) that

asked by Freddy on October 23, 2012

More Similar Questions