[All solutions must start by writing an equation (or equations) from the equation sheet on your paper. The solution must then follow a logical progression from the equation(s) on the equation sheet to the answer(s).] A 46,000-kg crane is used lower a 906-kg steel beam into place by a cable that connects the crane to the beam. a. Over a 3.0-s period, the beam travels downward, speeding up from 1.00 m/s to 6.50 m/s. Draw a motion diagram and a free body diagram and determine the tension in the cable during this time. Type your answer, with units, into the box below. b. When is the cable most likely to break- when the beam is going down and speeding up (as described in part a), when it is going down and slowing down, or when it is going down at constant speed? Apply Newton's 2nd Law to support your answer. Type your explanation (2-4 sentences) into the box below.

[All solutions must start by writing an equation (or equations) from the equation sheet on your paper. The solution must then follow a logical progression from the equation(s) on the equation sheet to the answer(s).] A 46,000-kg crane is used lower a 906-kg steel beam into place by a cable that connects the crane to the beam. a. Over a 3.0-s period, the beam travels downward, speeding up from 1.00 m/s to 6.50 m/s. Draw a motion diagram and a free body diagram and determine the tension in the cable during this time. Type your answer, with units, into the box below. b. When is the cable most likely to break- when the beam is going down and speeding up (as described in part a), when it is going down and slowing down, or when it is going down at constant speed? Apply Newton's 2nd Law to support your answer. Type your explanation (2-4 sentences) into the box below.

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

See similar textbooks

Similar questions

what is the tension T1 in a cord attaching a baby to a scale? what is the tension T2 in the cord attaching the baby to the ceiling? The mass of a rocket sled is 2100KG and the force of friction opposing the motion is 640N. The thrust for the sled is 25900N. What is the acceleration in Metres per second second? A 1140 KG artillery shell is fired from a battleship,.W,hile it is in the barrel of the gun, it experiences an acceleration of 2.2 x 10^4 m/s^2. what net force is exerted on the artillery shell before it leaves the barrel of the gun in Newtons. What is the magnitude of the force exerted on the ship by the artillery shell in Newtons?
The complete slide- back and forth motion of a single reciprocating compressor piston completes in a 2-sec period. The volume displacement of the piston though the piston cylinder is 8,902.63 in3. The stiffness of crank is said to be equal to 65.5N/m and the mass of the said piston is at 10kgs. Obtain the following 1. Plot the graph of the following relationship: A) Position vs Time graph B) Velocity vs Time C) Acceleration vs Time
22. A certain toy “helicopter” or “whirlybird” consists simply of a propeller attached to a shaft that is spun rapidly by hand to a certain angular speed ω0 and then released. The spinning propeller/shaft flies upward as the angular speed of its turning decreases. The propeller and shaft each have length L and mass m and the propeller has moment of inertia 1/12 mL2. (a) Based on conservation of energy derive an expression for the maximum height the toy could possibly attain in terms of the given quantities and appropriate constants. (b) The observed maximum height of such a toy would be substantially less than this – explain.
Please include explanation. A 6-MW offshore wind turbine has a capacity factor of 40%. It has a height of 120 m, and 107-m long blades. The angular acceleration is 1.388 rad/s2. Assume that the distance from the center of the turbine to the connection with the blade is negligible, and that the turbine starts from rest. At ? = 12 s, calculate the velocity and the acceleration for points (a) at half the length and (b) at the tip of the blade.
An elevator weighing 2,000 lb attain an upward velocity of 16 ft/sec in 4 seconds with uniform acceleration. What is the tension in the supporting cables?
Dynamics of Rigid Bodies Problem: 1.) A diver jumps from a height of 3.0 metres above the height of the water and touches the surface 1.0 s later. What was his velocity when he hit the water? 2.) A motorcyclist, travelling at a speed of 30 m/s, sees an obstacle 100 metres in front of him and puts on the brakes. He hits it 5.0 seconds later. If the motorcycle slows down uniformly, how fast was it going at the instant of the collision?
A structure has a mass of 10 kip/g and a stiffness of 10 kip/in. The acceleration of gravity, g, is 386.1 in/s2. Provide the period of the structure in seconds.
1. A massless spring (k=400) is pulled by 25cm from its natural length and then released,the spring is attached to a 0.40kg block and oscillates across a horizontal frictionlesssurface. Calculatea. Max velocityb. Max accelerationc. Velocity, restoring force and acceleration at 20 cm from its natural length.
A crank of length 30 cm, starting from an initial horizontal position P, rotates in a positive sense (counterclockwise) at a uniform rate of one revolution per second.a) Determine a function that gives the height of the end of the crank from the initial position line at any time t.
4. A concrete weight of 125 kg is released from standstill and a log of mass 200 kg is moved along an inclined area of 30° to the horizontal.When the concrete weight is moved down 5 m, find that 1. What is the speed of the log? 2. What is the movement time of the concrete drum?
This most likely is made to be a probelm about mx''+bx'+kx=f(t) m = mass b = friction k = spring constant 4. A mass weighing four pounds stretches a spring 24 in. Suppose the mass is atequilibrium and is set into motion with a velocity of 6 inches per second. The mass is in a mediumwhere friction is small, and we assume it is zero. Note that the acceleration due to gravity near theearth’s surface where the experiment takes place can be taken as 32 ft/s2.(a) Suppose that in addition to the conditions described above, a hammer strikes the mass everyπ/2 seconds starting at t = 0. A delta function with impulse of 1 pound-second models theforce of each blow to the mass. Find the function x(t) for the displacement from equilibrium infeet of the mass at time t in seconds. Express x(t) as a piecewise defined function without the use ofunit step or Heaviside functions and such that in each time window it is a different multiple of the samesinusoidal function.(b) Now assume the same spring-mass…
A. A motorcycle and rider have a combined mass of 350kg. The wheels each have a mass of 20kg, diameter of 500mm and radius of gyration of 200mm. The rider accelerates uniformly from 5m/s to 25m/s over a distance of 100m, whilst climbing a hill of slope 1 in 20. The average resistance to motion, including drag, is 105 N. 1. Determine the total work done as the motorcycle ascends the incline. 2. Calculate the amount of power developed during the climb. B. At another point in its journey, the motorcycle and rider travel at 80 km/h around a left-hand bend of radius 30m. Calculate: 1. The angular velocity of each of the wheels. 2. The moment of inertia of each wheel. 3. The magnitude and effect of the gyroscopic torque produced on the bike.