Question

Momentum A rocket is traveling at 0.11c. How fast must it go in order to increase its momentum by a factor of 18? хс Energy If an object's rest energy is 9 times its kinetic energy, how fast is it going? хс

Answer 1

V=Oolle at v say it should go Now momentum relativis ti calley is given by P= mv w being rest mass VI-V72 Then as per duestion 188 mvi mia ſi-v% - % 07 2. 18 V ✓ c²- v, 2 VC²_V₂2 2 or, V₂2 324 V c²_v2 (²_V 2 or) 324 v ² c ² – 324 v ² / ² = (² v2 Z_v, vz ² or v₂² (a²² 323 v ²) = 324 v 2 (² 18 YC √²+ 323 v² or, V₂ = 18 v, e 1 (JP+ 323 x 0:112) 8.12 V = 8.12 x o.llc =10.89 el ansa on

Say its velocity is v and ress mass Mo then ( ² ) oo moc? a (Jp cat maca ✓ P²,²7 mo²c4 10 moc? or p²c² = ( 100 - 1) MCA = 4 mica P = (mee? 10 9 or, or mov mo c² I-a) 2 19 fuz (²v2 19 81 2 19 81 81 ΟΎ. 100 2 2. V ST or, riq C = 10.44 @ answer 10 please put a thumb up if this helps