need help with this one A contractor lifts beams (985 kg) 52 m using a 10 hp-rated crane. Convert10 hp to Watts (use 1 hp = 746 W) and calculate the available power to liftthe beams if only HALF of the rated power is used (that is, the crane isoperated at half-capacity). Then use this information to determine how muchtime it takes to lift each beam, rounded to the nearest second.

mass of beam (m) = 985 kg Distance moved (d) = 52 m Power of crane (P) = 10 hp = 10×746 W = 7460 W…

A contractor lifts beams (985 kg) 52 m using a 10 hp-rated crane. Convert 10 hp to Watts (use 1 hp = 746 W) and calculate the available power to lift %3D the beams if only HALF of the rated power is used (that is, the crane is operated at half-capacity). Then use this information to determine how much time it takes to lift each beam, rounded to the nearest second.

A contractor lifts beams (985 kg) 52 m using a 10 hp-rated crane. Convert 10 hp to Watts (use 1 hp = 746 W) and calculate the available power to lift %3D the beams if only HALF of the rated power is used (that is, the crane is operated at half-capacity). Then use this information to determine how much time it takes to lift each beam, rounded to the nearest second.

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter4: Work And Energy

Section: Chapter Questions

Problem FM

See similar textbooks

Similar questions

Check Your Understanding Estimate the power expended by a weightlifter raising a 150-kg barbell 2 m in 3 s.
How much work is done against the gravitationaI force on a 5.0-kg briefcase when it is carried from the ground floor to the roof of the Empire State Building, a vertical climb of 380 m?
Cite two examples in which a force is exerted on an object without doing any work on the object.
A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30s?
Explain, in terms of the definition of power, why energy consumption is sometimes listed in kilowatt-hours rather than joules. What is the relationship between these two energy units?
A particle of mass 2.0 kg moves under the influence of the force F(x)=(3/x)N. If its speed at x=2.0 m is v=6.0 m/s, what is its speed at x = 7.0 m?
What is the dominant factor that affects the speed of an object that started from rest down a frictionless incline if the only work done on the object is from gravitational forces?
Does the work done in lifting an object depend on how fast it is lifted? Does the power expended depend on how fast it is lifted?
If an airplane engine develops a force of 146195 Newtons forward on the airplane, what is the power (in hp) developed by the engine if the airplane is flying at 179 meters/sec?
Find the work available for a car weighing 1290N, that travels 200. meters. What distance can a crane lift a 55.0 N box, if it expends work of 2.00 x 104 Joules? A crane does work of 13,500 J with a force of 5200 N to lift a beam. How far can the beam be lifted (in meters)? Round all answers to the nearest significant figure.
If a crane does 350J of work on a beam in 6 seconds, what is the crane's power?
By what percent has the cubic term increased the work over what would be needed to compress an ideal spring?