For lunch you and your friends decide to stop at the nearest deli and have a san
ID: 1466927 • Letter: F
Question
For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.100 kg of turkey. The slices of turkey are weighed on a plate of mass 0.400 kg placed atop a vertical spring of negligible mass and force constant of 200 N/m . The slices of turkey are dropped on the plate all at the same time from a height of 0.250 m . They make a totally inelastic collision with the plate and set the scale into vertical simple harmonic motion (SHM). You may assume that the collision time is extremely small.
What is the amplitude of oscillations A of the scale after the slices of turkey land on the plate?
What is the period of oscillation T of the scale?
Explanation / Answer
conservation of momentum as KE = PE
0.5 mv^2 = mgh
so
v=sqrt(2*g*h)
v = sqrt(2 * 9.81 * 0.25)
V =2.214 m/s
now from momentum principle
mv=(M+m)V
0.100*2.214 =0.500*V
V=0.44 m/s
then kinetic energy=1/2k*A^2
A=sqrt((M+m)/k)*V=
A = sqrt(0.500/200)*0.44
A = 0.02217 m
---------------------------------------------------
time period T = 2 pi * sqrt(m/k)
T = 2*3.14* sqrt(0.5/200)
T = 0.314 secs
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.