In a materials testing laboratory, a metal wire made from a new alloy is found to break when a tensile force of 90.8 N is applied perpendicular to each end. If the diameter of the wire is 1.74 mm, what is the breaking stress of the alloy?
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Stress on a Mountaineer's Rope. A nylon rope used by mountaineers elongates 1.60 m under the weight of a 65.0-kg climber. If the rope is 55.0 m in length and 7.0 mm in diameter, what is Young's modulus for this material?
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An 8.11-kg point mass and a 15.1-kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point between the two masses 20.0 cm from the 8.11-kg mass along the line connecting the two fixed masses. Find the magnitude and direction of the acceleration of the particle.