Two Boxes Are Connected by a Weightless Cord Running Over

question 27

Essay

Two boxes are connected by a weightless cord running over a very light frictionless pulley as shown in the figure. Box A, of mass 8.0 kg, is initially at rest on the top of the table. The coefficient of kinetic friction between box A and the table is 0.10. Box B has a mass of 15.0 kg, and the system begins to move just after it is released. (a) Draw the free-body diagrams for each of the boxes, identifying all of the forces acting on each one.
(b) Calculate the acceleration of each box.
(c) What is the tension in the cord?

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Definitions:

Semi-Annually

Occurring twice a year; a term often used in the context of paying interest or dividends.

Yield To Maturity

The total return anticipated on a bond if it is held until its maturity date, considering all interest payments and the principal repayment.

Par

The face value of a bond or other security, at which it can be redeemed at maturity or the amount of money equal in value to a particular share or bond.

Coupon

The yearly payment of interest to those holding bonds, represented as a percentage of the bond's nominal value.