6) A meteor of mass 575 kg has speed 90.0 m/s when it is 800 kmabove the surface of the Earth. It is falling vertically andstrikes a bed of sand in which it is brought to rest in 3.25 m.Ignore the effects of air resistance. a) What is its speed justbefore striking the sand? b) How much work does the sand do to stopthe meteor? c) What is the average force exerted by the sand on themeteor? d) How much thermal energy is produced?