Wiley signals and systems e book TLFe BO 181

f I signal with discontinuity t - Figurc 8.12: Arri~lysingsigrials wit 11 clisroiitiniiitics (8.32) Figure 13: A j)itck sliding on ice If the purk iu imiforinly set 111 motion iii t = bj itn icc horkry stick, tlic proItortionally with tiizie (Figuie 8.14 top) Tltr h r e couid ating tlic rlisplaccvrent twiw if y ( f ) tould be clifrerentinted f = 0%Iiowvrr, this ih riot the rase and again we nc1c.d the l d p of tlishibut tonsi Derivation of thc di.;pli;l~m~nt yields the velociLy 111 t ~ I P form of: a itep fuiictioii Repeating the ck~ri\iitioirthen yields forcc in the form of