hey need answer for this question.....plss......?

Question

consider that a chain made of oval shaped identical metal rings is hanging vertically(perpendicular} 2 the surface of a floor..

now consider theres no air resistance ..no atmosphere at all..
the length of the chain is taken as x metres ....
now assume theres no influence of gravity on the chain beyond a particular point B WHICH is above the floor.
now take acc due to grav as 10m/s/s..one end of the chain is just touchin the floor which is taken as point A..NOW thers influence of gravity on the chain only between point A and point B. BEYOND that thers no field at all (jus imagine kkk). if x is taken as say 200metres..and ab is 10 metres .

i need the equation which can used to calculate the velocity with which the chain ill b movin at any point of time t..

Answer 1

Magic in logic.

Answer 2

Is this a trick question?

In a frictionless environment, don't all objects fall at the same speed, regardless of mass? In which case, trying to place the "decreasing mass" into the equation would be incorrect?

More to the point, if the weight is not a factor, isn't the speed just determined by solving the acceleration for the speed (9.8 m/s/s, or as you state, 10 m/s/s)?

Answer 3

V=Mg square where M is mass and g is gravity