Register to reply

Simple Harmonic Motion

by nyyfan0729
Tags: harmonic, motion, simple
Share this thread:
Feb22-06, 09:58 PM
P: 12
A block of mass 0.5kg moving on a horizontal frictionless surface at 2.0 m/s collides with and sticks to a massless pan attached to the end of a horizontal ideal spring whose spring constan is 32 N/m.
a) Determine the function for x(t), the displacement from equilibrium position as a function of time.
I got this to be x(t) = .25sin(8t)

b) What is the period T, of the subsequent oscillations?
I got the period to be .785 sec

c) What is the kinetic energy of the mass 4.0 sec after it collides with the spring?
I got this to be .997j

d) What force is exerted by the spring on the block at t=1.2 sec? Which way is the block moving? Explain
I got the force to be -1.334N

ARE MY ANSWERS RIGHT, I ALSO SAID THAT Xo=0m when using my equation.
Phys.Org News Partner Science news on
What lit up the universe?
Sheepdogs use just two simple rules to round up large herds of sheep
Animals first flex their muscles
Feb23-06, 05:44 AM
Sci Advisor
PF Gold
Hootenanny's Avatar
P: 9,772
You have to show your working, it is much easier to check for systematic errors, you can't expect someone to work through your problems from scratch.

Register to reply

Related Discussions
Motion of object (simple harmonic motion?) Introductory Physics Homework 3
Simple Harmonic Motion and Wave Motion General Physics 2
SImple Harmonic Motion Introductory Physics Homework 2
Simple Harmonic Motion/Wave Motion Introductory Physics Homework 2
Simple Harmonic Motion Introductory Physics Homework 4