What constant power must the motor supply as the hook rises

Assignment Help Physics
Reference no: EM13975875

A new construction crane has the following specifications: The hook has mass 1000kg, the maximum capacity of the hook is 400kg, the constant lifting speed of the hook is 1.5 m s , and the hook must achieve this speed in 2seconds at a constant acceleration, beginning at rest.

A) What is the maximum average power the crane motor must deliver to get up to cruising speed?

B) What constant power must the motor supply as the hook rises, after attaining its cruising speed upward?

Reference no: EM13975875

Questions Cloud

Define what a unix system administrator does : 400-60 words about: Define what a UNIX system administrator does. Describe what the day-to-day tasks and longer running projects would entail.
Which diagram correctly shows distribution of charge on bar : A neutral copper bar oriented horizontally moves downward through a region where there is a magnetic field out of the page. Which diagram correctly shows the distribution of charge on the bar?
What is capacitors cx : A network of capacitors is mostly inside a sealed box, buit one capacitor Cx is sticking out, as shown in the figure. When you connect a multimeter across points a and b, it reads 27.0 uF. What is Cx?
How many sodium ions enter the cell as it fires : Model the central body of a nerve cell-the soma-as a 50-m-diameter sphere with a 7.0-nm-thick cell wall whose dielectric constant is 9.0. Because a cell's diameter is much larger than the wall thickness, it is reasonable to ignore the curvature o..
What constant power must the motor supply as the hook rises : A new construction crane has the following specifications: The hook has mass 1000kg, the maximum capacity of the hook is 400kg, the constant lifting speed of the hook is 1.5 m s , and the hook must achieve this speed in 2seconds at a constant acce..
What ethos does hardin create : Garrett Hardin's "Lifeboat Ethics" is about making both personal and political decisions based on values, such as with population related issues:
What is the average water velocity : A nozzle on a fire hose contracts from 3 inches to .5 inches. The average water velocity in the 3 inch section is 10 ft/sec. What is the average water velocity at the .5 inch section in m/sec? State any assumptions used.
Develop linear model for forecasting transformer requirement : To test the belief that the mean number of transformers that are required exceed 1000 transformers, please follow a formal hypothesis-testing procedure and interpret - Develop a linear model for forecasting transformer requirements based on sales o..
Differences between practical and theoretical reasoning : Name and describe two differences between "practical reasoning" and "theoretical reasoning." Does this distinction (practical vs. theoretical) make intuitive sense to you

Reviews

Write a Review

Physics Questions & Answers

  What magnitudeof force must you apply

You are riding in an elevator on the way to the eighteenthfloor of your dormitory. The elevator is accelerating upwardwith a = 1.90 m/s2. what magnitudeof force must you apply

  Find the magnitude of the torque acting on the dvd

A DVD decelerates at a constant rate from 136 rad/s to 73.3 rad/s over the course of 2 hours. Given that a DVD has a moment of Inertia of 0.00014 kg m2, find the magnitude of the torque acting on the DVD

  Find the value of the inductance

A series RCL circuit contains a 4.99-µF capacitor and a generator whose voltage is 11.6 V. At a resonant frequency of 1.20 kHz the power delivered to the circuit is 24.1 W. Find the value of the inductance

  What is the initial velocity of the ball

You toss a racquetball directly upward and then catch it at the same height you released it 2.06 s later. Assume air resistance is negligible. What is the initial velocity of the ball

  Pendulum is released from rest extended horizontally

A pendulum is released from rest extended horizontally. The mass ofthe pendulum is 0.5 kg and the length of the string to the centerof mass is 75 cm. What is the speed of the pendulum bob as itpasses through the vertical. Use the work energy theor..

  Find the magnitude of the velocity of the heavier fragment

A 10.0- shell is traveling horizontally to the right at 25.0 relative to the ground when it explodes into two fragments, Find the magnitude of the velocity of the heavier fragment relative to the ground just after the explosion

  Find the current flowing through the third light bulb

Three light bulbs each with a resistance of 50W, are connected in series to a 100 V power supply, find the current flowing through the third light bulb

  Find the position and velocity of the water balloon

A water balloon is released from rest from the top of the Thurmond Marshall School of law. Ignore the air resistance. Find the position and velocity of the water balloon

  Q1 a dentists drill starts from rest after 320 s of

q1. a dentists drill starts from rest. after 3.20 s of constant angular acceleration it turns at a rate of 2.46 104

  Determine how many revolutions does the wheel make

A bicycle wheel of radius 25 cm rolls a distance of 3.0 km. How many revolutions does the wheel make during this journey

  Calculate the crystal formation rate in crystalss

1. the foo is define as a unit of force required to accelerate a unit of mass called a bas with the gravitational

  A container is filled to a depth of 200 cm with water on

a container is filled to a depth of 20.0 cm with water. on top of the water floats a 35.0 cm thick layer of oil with

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd