Q.1.Find the total mechanical energy in one time period? my sir says that it is (1/2)mw^2A^2 but according to me it should be 1/4mw^2A^2.How?
Q.2.The total mechnical energy of a spring mass system in SHM is E = (1/2)mw^2A^2.Suppose the oscillating particle is replaced by another particle of double the mass while the amplitude A remains the same. The new mechanical energy will be?

  1. 👍 0
  2. 👎 0
  3. 👁 206
  1. Q1. w^2A^2 = V^2 at maximum velocity. At that time, all energy is KE, and equals

    Q2. Total energy is proportional to mass. But w is inversely proportional to sqrt(mass). Therefore E stays the same, if A is constant.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics.

    A 20.0 kg cannon ball is fired from a cannnon with muzzle speed of 1000 m/s at an angle of 37.0 with the horizontal. A second ball is fired at an angle of 90.0. Use the conservation of energy principle to find a] the maximum

    asked by Jean on March 15, 2007
  2. Science

    What is the main difference between mechanical and electromagnetic waves? A. Mechanical weaves involved transfers energy; electromagnetic waves do not B. Mechanical waves require a medium to travel in; electromagnetic waves do

    asked by I need help on March 13, 2017
  3. science

    Study the scenario. A match is lit in an isolated system. The match releases 40 J of heat energy. Which choice correctly describes what happens to the total energy of the system over time? The total energy of the isolated system

    asked by HELP! on May 15, 2020
  4. College Physics

    Can someone check my answers for two and help me with the third? 1) A mass m at the end of a spring of spring constant k is undergoing simple harmonic oscillations with amplitude A. Part (a) At what positive value of displacement

    asked by Michelle on April 25, 2014
  5. math

    Power companies typically bill customers based on the number of kilowatt-hours used during a single billing period. A kilowatt is a measure of how much power (energy) a customer is using, while a kilowatt-hour is one kilowatt of

    asked by HELLO on March 9, 2013
  1. Physics

    A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equilibrium point and released. Determine a). the spring constant, k, b). the maximum velocity of the

    asked by Lori on February 23, 2013
  2. science(check answers)

    can someone check my answer thanks ! 2.The ability to do work or cause change is called A.velocity. PICK B.) C.transfer. D.friction. 3.Which type of energy is demonstrated by a person jogging? A.electrical energy

    asked by matt on March 5, 2014
  3. physics

    A 79-kg sprinter accelerates from rest to a speed of 11.0 m/s in 4.8 s. (a) Calculate the mechanical work done by the sprinter during this time. J (b) Calculate the average power the sprinter must generate. W (c) If the sprinter

    asked by Annette on April 29, 2013
  4. Science

    1. Which of the following statements about mechanical waves is true? a. mechanical waves require a medium to travel through b. mechanical waves do not have amplitude and wavelength c. mechanical waves do not have frequency d.

    asked by Thank you! on May 14, 2018
  5. Physics

    Consider the gravitational potential, kinetic, and total mechanical energies of a cart moving down an inclined ramp. (Also, let gravitational potential energy be defined to be zero when the cart is at the bottom of the ramp. A.

    asked by Tim on March 13, 2014
  6. physics

    I need help understanding these, please. Thanks! 1. A 2 kg body moves with constant velocity when a force of 10 N is applied. What is the coefficient of kinetic friction between the table and the body? (Would I use F=m*g for

    asked by Ellie on October 4, 2015

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