There are (one can say) three coequal theories of motion for a single particle: Newton's second law, stating that the total forc
e on an object causes its acceleration; the work–kinetic energy theorem, stating that the total work on an object causes its change in kinetic energy; and the impulse–momentum theorem, stating that the total impulse on an object causes its change in momentum. In this problem, you compare predictions of the three theories in one particular case. A 4.00-kg object has velocity 7.00ĵ m/s. Then, a constant net force 11.0î N acts on the object for 4.50 s.a) Calculate the object's final velocity, using the impulse–momentum theorem.vf= m/s
<span>First, she should put the sample in a test tube and place it in a centrifuge. This would cause the red blood cells to move to the bottom because of their higher density. Next, she would be able to decant the plasma and analyze it separately from the red blood cells.</span>
