Question

03. An experimental rocket propelled sled runs on a straight horizontal track. A friction force for which 0.10 acts between the sled and the track (a) Working from first principles and neglecting air resistance show that the nstantaneous acceleration a of the sled is given by iu where: h mass burn rate of the propellant eexhaust efflux velocity measured relative to the sled M instantaneous mass of the sled g-acceleration due to gravity 12 marks (b) If the initial total mass of the vehicle including propellant is 900 kg, and the rocket motor produces a constant exhaust efflux velocity of 1000 mis and burns propellant at the rate h -6.0 kg's for 20 seconds before exhausting all of the propellant, detemine the maximum velocity of the sled 13 marks

step by step explanation please

Answer 1

me ng -(metd we )を 乏た ,'' dmedv o Suall Cewpoued to other tesus 자

a- to nled m(t) Ho- met meニ 시=001 Mo-itet Mo-he

Ho-met 20 Но E 20 See 0D-6x20 = t4 3-1-20 nuu = 133-1 nys