the $800$ kg wet mass mars polar lander consumes $250$ kgs of fuel to reach a circular polar low mars orbit of $271\mathrm{.}3$ km from mars surface. ML makes a powered landing from a $1300$ m altitude. calculate the minimum DV$,$ time and fuel $($with an average Isp$*$g of $3009$ m$/$s$)$ required to reach mars surface. neglect fuel required to lanlands from the $1300$ km altitude. what may be the thrust level of on$-$board thrusters to land the lander if it has $16$ equal thursters? please make a sketch and state your assumptions for each step.