Velocity homework help

  • Thread starter student1
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  • #1
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Homework Statement


A 100kg object is released from rest at an altitude of h=50km. Ignoring aerodynamic drag and wind behaviour, determine the velocity of the object just before it strikes the earth at sea level, asumming gravity is 9.81 m/s^2 and constant


Homework Equations



F=G(m1m2)/r^2

F=ma

The Attempt at a Solution


F=967.74N
a=9.68m/s2
 

Answers and Replies

  • #2
tiny-tim
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Hi student1! :smile:
A 100kg object is released from rest at an altitude of h=50km. Ignoring aerodynamic drag and wind behaviour, determine the velocity of the object just before it strikes the earth at sea level, asumming gravity is 9.81 m/s^2 and constant

Hint: use conservation of energy :wink:
 
  • #3
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thank you very much
 

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