(Solved): Points:? As your vacation job, you are driving a concrete muxer (mass 6000kg ). While driving dow ...

Points:? As your vacation job, you are driving a concrete muxer (mass $$6000\mathrm{kg}$$ ). While driving down a hill (angle $$a=29$$ with the harizontal) suddenly, a cow steps out on the road. You hit on the brakes, and with each locked wheel leaving 20 meters of skad mariks, you come to a stop $$59\mathrm{cm}$$ before hitting the oblivious cow. The farmer yelis at you and claims you have been speeding. Ony a quick calculaton, based on the length of the skid marks, would convience him that you have been driving responsibly the farmer argues correctly that if you had been driving half the speed, the skid marks would be in only a quarter as long * only haif as long. only one eigths as iong. Tries $$1/2$$ Provious Tines You haggen to know that the coefficient of kinetic friction between your tires and the road is 0.93 . Thus, what was your speed? Thes 0/12