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A meteoroid of mass = 555 kg has a speed of 90.0 m/s when 700...

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Physics

A meteoroid of mass = 555 kg has a speed of 90.0 m/s when 700 kmabove the Earth. It is falling vertically (ignore air resistance)and strikes a bed of sand in which it is brought to rest in 3.49 m.(a) How much work does the force of gravity do on the meteoroid onthe way to the surface? GJ (b) What is the speed of the meteoroidjust before striking the sand? m/s (c) How much work does the forceof gravity do on the meteoroid after it hits the surface? GJ (d)How much work does the sand do to stop the meteoroid? GJ (e) Whatis the average force exerted by the sand on the meteor? GN (f) Howmuch thermal energy is produced? GJ

Answer & Explanation Solved by verified expert
3.9 Ratings (407 Votes)
aWork done is given by W F SCOSWhereW Work doneF ForceS displacement anglebetween Force Vector and Displacement vectorAs the meteoroid falls the only force acting on it is thegravitysince air resistance has been neglected in thequestionThe    See Answer
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