A meter stick is balanced at its center (i. e. at the 50 cm mark). At the 22 cm mark is placed a 158 gram mass. Where should a 259 gram mass be placed, so that the stick remains balanced. Write your answer as the cm mark on the meter stick (round to one place of decimal).

Kinetic energy = 1/2mv^2. since the mass is constant we can form a ratio of it's kinetic energy at 60 divided by that at 30 to see ke(60)/ke(30) = +(60^2)/30^2). this may be said to 300% increase.

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.