Apoint mass m is connected to a point on a string of mass per unit length p. a transverse wave aelatok) propagates with the velocity v in the positive x-direction along the string and is partially reflected and transmitted at the mass. the boundary conditions are as follows. the transverse displacements of the string just to the left and to the right of m are equal and the difference between the transverse forces just to the left and to the right of m equal the multiplication of m and its acceleration. show that the ratio of reflection coefficient and the transmission coefficient is = ( pon

Learning goal: to understand newton's 1st law. newton's principia states this first law of motion: an object subject to no net force maintains its state of motion, either at rest or at constant speed in a right line. this law may be restated as follows: if the sum of all forces acting on an object is zero, then the acceleration of that object is zero. mathematically this is just a special case of the 2nd law of motion, f⃗ =ma⃗ , when f⃗ =0. when studying newtonian mechanics, it is best to remember the 1st law in two ways: if the net force (i.e., sum of all forces) acting on an object is zero, the object will keep moving with constant velocity (which may be zero). if an object is moving with constant velocity, that is, with zero acceleration, then the net force acting on that object must be zero. complete the following sentences to see if you can apply these ideas. part a if a car is moving to the left with constant velocity, one can conclude that