SOLUTION: an object of mass 3kg is released from rest at 500m above ground, and allowed to fall under influence of gravity. the force due to air resistance is proportional to the velocity of
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Question 1051000:  an object of mass 3kg is released from rest at 500m above ground, and allowed to fall under influence of gravity. the force due to air resistance is proportional to the velocity of the object with k=3N sec/m. formulate the particular explicit solution of the problem 
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
 You have the force of gravity acting towards the earth. 
You have the force of air resistance acting in the opposite direction.
So summing the forces,
 with 
Solving that gives you,
Now you have an equation for the velocity of the object. 
Integrate to get the equation for position,
 with initial condition 
So then,
 
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