Answer each question of the 3 groups with their given topics, give a complete solution.
(A)Equilibrium - Tension:
1.)Two objects of masses 4kg and 6kg are connected by a rope over a pulley. If the system is in equilibrium, find the tension in the rope.
2.) A sign weighing 150N is hung by two cables at angles of 20 degrees and 70 degrees with the horizontal. Calculate the tension in each cable.
(B)Stress:
3.) A rod with a cross-sectional area of 0.01m^(2) is subjected to a force of 3000N. Determine the
stress in the rod.
4.)A material has a force of 500N applied over an area of 0.05m^(2). Calculate the stress on the
material.
(C)Strain:
5.)A wire stretches by 0.01 meters when a force is applied. If the original length is 1 meter, calculate
the strain.
6.)The strain in a material is measured to be 0.003 . If the original length is 3 meters, determine the
change in length.
Equilibrium-Tension:
equilibrium,find the tension in the rope
2. A sign weighing 150 N is hung by two cables at angles of 20 degrees and 70 degrees with the
horizontal. Calculate the tension in each cable.
Stress:
1. A rod with a cross-sectional area of 0.01 m^2 is subjected to a force of 3000 N. Determine the
stress in the rod
2. A material has a force of 500 N applied over an area of 0.05 m^2.Calculate the stress on the
material.
Strain:
1. A wire stretches by 0.01 meters when a force is applied. If the original length is 1 meter, calculate
the strain
2. The strain in a material is measured to be 0.003.If the original length is 3 meters,determine the
change in length.