Homework 3 Hand-In Assignment Vrite your solutions for this problem at home and

Question

Homework 3 Hand-In Assignment Vrite your solutions for this problem at home and turn them in Monday at the beginning of the lecture. .orce. 1=1mpulse | mv = change in momentum At = mv final-mv,ntial my, niti, t my, ina -m,v,Anal+ m,v,final elastic collisions (objects bounce off) mi nal + m2V2m al-(m +m,jvfinal inelastic collisions (objects stick) (m + m2)v,nitial-m,Yuna, t m2 v2 Anal explosi initial A 2 kg ostrich egg is thrown into a sheet, and hits it with a speed of 5 m/s. The sheet stops the egg. If the impact lasts 0.05 s, will the egg break? (Calculate the force on the egg, and compare it with the breaking force of the egg, which is a little higher than 20N.)

Explanation / Answer

Given mass of egg m = 2 kg

initial velocity vi = 5 m/s

final velocity vf = 0

time of impact t = 0.05 s

let F be the force then

from impulse momentum theorem

impulse = change in momentum

F * t = m (vf - vi)

F * 0.05 = 2 * (0 - 5)

F = 200 N (This is greater then 20 N)

The egg breaks

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