physics

A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever?
What is the ideal mechanical advantage of the lever? What is the efficiency of the lever? Show your work.

  1. 👍 0
  2. 👎 0
  3. 👁 360
  1. A basket of neglible wieght hangs from a vertical spring scale of constant force 1500N/m. If you sundally put a 3.0 Kg adobe brick in the basket, find the maximum distance that the spring will stretch. If, instead, you released the brick from 1.0 m above the basket, by how much will the spring stretch at its maximum elongation?

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    in which of the following situation is mechanical work done?a, a girl chewing a piece of chewing gum .b,an acrobat supporting two men on his shoulders. c,a man standing with heavy loads on his head. d,a man try to lifts a heavy

    asked by Anonymous on July 4, 2019
  2. Physics

    An effort force of 60N is applied to rise a load 100N. If the load is carried through a distance of 20m and the effort moves through a distance of 40m using a lever, then, a. What are AMA and VR of the machine b. Calculate the Win

    asked by saron on July 22, 2020
  3. Physics

    the input and output of hydraulic jack are respectively 1 cm and 4 cm in diameter. A lever with a mechanical advantage of 6 is used to apply force to the input piston. How much mass can the jack lift if a force of 180 N is applied

    asked by Owen on October 22, 2012
  4. physics

    A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.

    asked by Peg on May 19, 2014
  1. Physics

    A man weighing 700 N lifts a 50.0 N object 2.0 m high. He uses a lever and with a force of 10.0 N. What is the resistance force

    asked by Pat on February 7, 2012
  2. Algebra 1

    The weight needed to balance a lever varies inversely with the distance from the fulcrum to the weight. A 120-lb weight is placed on a lever, 5 ft from the fulcrum. What amount of weight, in pounds, should be placed 8 ft from the

    asked by Help on May 2, 2018
  3. physics

    a lever is 5 m long. The distance from the fulcrum to the weight to be lifted is 1 m. If a 3000 N rock is to be lifted, how much force must be excerted on the lever?

    asked by lulu on January 21, 2009
  4. physics

    3. A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the

    asked by Tim on June 8, 2011
  1. physics

    two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and

    asked by Anonymous on April 28, 2013
  2. physics

    . A 90cm uniform lever has a load of 30N suspended at 15cm from one of its ends. If the fulcrum is at the centre of gravity, calculate the force that must be applied at its other end to keep it horizontal

    asked by uchenna on September 27, 2014
  3. Integrated Physics and Science

    A crowbar is used as a lever. The effort force of 40 newtons moves 3 meters. The resistance force of 54 newtons moves 2 meters. What is the efficiency of the lever? A) 100% because energy must be conserved B) 90% C) 25% D) 18% i

    asked by Nella on January 10, 2011
  4. physics

    A force of 300N lifts a mass of 120kg with help of lever whose length is 2.4 m.The distance between fulcrum and mass is a) 40cm b) 48cm c) 80cm d) 171cm

    asked by Ghulam muhammad on November 6, 2016

You can view more similar questions or ask a new question.