Join TSR now and get all your revision questions answeredSign up now

Simple Harmonic Motion help!

    • Thread Starter

    Can someone help with these questions please?

    1. A mass of 0.50kg vibrates in SHM with a maximum KE of 3.0mJ. If its amplitude is 20mm, calculate the frequency of the motion.

    2. A mass oscillates in SHM on the end of a spring of force constant 40 Nm^-1. If the amplitude of the motion is 30mm, calculate the max KE of the mass. (Hint: w^2 = k/m)


    For (1), if you know the maximum KE of the mass and it's mass, you can work out it's maximum velocity. There is an equation for the maximum velocity of an object undergoing SHM in terms of amplitude and frequency, which should get you to the end of the question.
Which party will you be voting for in the General Election 2017?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.