Problem 4-23 {page 102): Arlene is to walk across a "high-wire\" strung horizontally between two buildings 10.0 m apart. The sag in the rope when she is at the midpoint is 100". If her mass is 50.0 kg, what is the tension in the rope at this point? Example: An object with m=10.0 kg is place on a smooth incline which is 37 above the horizontal. (a) What is the normal force (surface of the incline acting on the object}? (b) If the object is released from rest, what is the magnitude of acceleration? (c) If the object is kept at rest on the incline's surface, how large a force parallel to the incline's surface is required to pull the object? Exam le 4-12 a e 90 : Two boxes A and B are connected by a lightweight cord and are resting on a smooth (frictionless) table. A horizontal force Fp of 40.0 N is applied to the 10.0 kg box. (a) Find the acceleration of the system, (b) Find the tension force in the cord connecting the boxes. m3 = mA = E) L V 12.0 kg 10.0 kg . ' V V 40.0 N \\X Box B Box A (a)