A small rescue helicopter has four blades, each with a length of 4.00 m and a mass of50.0 kg, as shown in the figure. The blades can be approximated as thin rods that rotateabout one end of an axis perpendicular to their length. The helicopter has a total mass of1000 kg.a) Calculate the rotational kinetic energy in the bladeswhen they rotate at 300 rpm.b) Calculate the translational kinetic energy of thehelicopter when flying at 20.0 m/s.c) To what height could the helicopter be raised if all of therotational kinetic energy could be used to lift it?4.0 m

Here is the step-by-step explanation: Given:Length of each blade, L=4.00 mMass of each blade,…

Answered: A small rescue helicopter has four…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A 3-meter-long 25 kg beam is supported by two cables as shown below. You can treat the beam as a slender rod. Assume we want the left end of the beam at A to remain as a constant height while the right end of the beam at B to accelerate upwards at a rate of 1 m/s?. a) What is the rate of acceleration of the center of the beam and the rate of angular acceleration for the beam? b) What will T, and T2 need to be to achieve these accelerations? T A .5 m 1.5 m 1m B.
A 3-meter-long 25 kg beam is supported by two cables as shown below. You can treat the beam as a slender rod. Assume we want the left end of the beam at A to remain as a constant height while the right end of the beam at B to accelerate upwards at a rate of 1 m/s². a) What is the rate of acceleration of the center of the beam and the rate of angular acceleration for the beam? b) What will T₁ and T₂ need to be to achieve these accelerations? A T₁ .5 m 1.5 m C T₂ (Solution: acy = 5 m/s², a = 333 rad/s², T₁ = 81.75 N, T₂ = 176 N) 1m B
Question 2.
Need all parts in neat and clean handwritten solution. Do remember before attempting
During a bicep curl on a bicep curl machine, I'm curling a weight stack of 100 pounds (single arm...I'm jacked like that). At this very moment, the weight stack has a moment arm of 0.12m, my elbow has an angle of 63deg, my muscle force vector has an angle of 23deg, and it attaches 3cm below my elbow joint on my radius. How much force must my bicep create right at this moment to hold the weight stack in place?
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A shaft is rotating at a uniform speed with four masses m1, m2, m3 and m4 of magnitudes 300 kg, 450kg, 360kg and 390 kg respectively. The masses are rotating in the same plane. The corresponding radii of rotation are 200mm, 150mm, 250mm and 300mm. The angles made by these masses with respect to horizontal are 0°, 45°, 120° and 255° respectively. 1) Check the magnitude and position of balance mass if it radius of rotation is 200mm, and 2) Evaluate the effect of adding the balance mass to the system. solve it using garphical method
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The following figure represents a bicep curl maneuver where the center of mass (CoM) of a 23 kg dumbbell is 0.29 m from the elbow joint (pivot). The mass of the arm is 5 kg and acts 0.17 m from the elbow joint, and the biceps tendon acts at a distance of 0.01 m from the elbow joint. A)The triceps produces a negligible force and the arm is at an angle of 15 degrees above the horizon. The given distances from the joint are the distances along the line that is 15 degrees above the horizon as shown in the figure. What magnitude of force in newtons (N) must the biceps muscle produce to hold the 23 kg mass in place (static equilibrium) b)

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