The magnitude of current in the second wire.

Question

Two blocks, A and B (with mass 45 kg and 120 kg, respectively), are connected by a string, as shown in the figure below. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is μk = 0.26. Determine the change in the kinetic energy of block A as it moves from to ①, a distance of 15 m up the incline (and block B drops downward a distance of 15 m) if the system starts from rest. ] 37° A © B

Answer 1

Question

Chapter 30, Problem 30.22P

(a)

To determine

The magnitude of current in the second wire.

(b)

To determine

The direction of the currents in the wires.

(c)

To determine

What would happen if the direction of one current be reversed and double.

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