Static equilibrium : Calculating the range of value for which cables will remain taut.

Determine the range of values of «P» for which both cables remain taut. Please see the attachment for a drawing of the solution.

Study of elastic parameters of cross-linked rubber sample under compressive force.

A sample of an ideal crosslinked rubber has a number average molecular weight between crosslinks of 5000 and a density of 900kg/m3. A block of this rubber, a cube of sides 100mm, is tested at a temperature of 300K. a). What is its tensile modulus? b). What is its shear modulus? Axes X, Y, and Z are chosen parallel to th ...continues

Simple machines

I need to write a research paper on the six simple machines (the inclined plane, the wedge, the screw, the lever, the pulley, and the wheel and axle).

Conservation of momentum in a capture collision of two masses initially moving in different directions. Requires solving a vector polygon.

Two joined known masses after collision are moving with given velocity. Before collision, the two move with non-parallel unknown velocities to be found.

mechanics problem

If a rigid homogeneous rectangular crate of mass m and height h slides on its base of w, while traveling a velocity v, it stikes a low, immovable curb. What is the angular velocity of the crate immediately after the impact, in terms of m,w,h,v; and under what condition (in m,w,h,v) will the crate fall over on its side?

mechanics problem - rolling

A uniform rigid disk of radius r and mass m rolls without slipping on a smooth horizontal surface. A constant force of magnitude P is applied to the rim of the disk at distance r above the horizontal surface and in the direction of motion. r,m,P are known. what is the angular acceleration in terms of known quantities, and wha ...continues

mechanics - rod/pin apparatus

Rigid rod OA is 2 ft long and rotated around fixed pt O. This rod is pinned at A to rigid connecting rod AB, 6 ft long, which in turn is pinned at B to piston C. This piston moves without friction along the y axis. The pins are also frictionless. Rod OA is positioned so that it is pi/3 radians above the x-axis and angular ve ...continues

Understanding a collision of 2 blocks and its forces and energies.

How do you determine the speed just before blocks collide? How do you determine the temperature rise that results from the collision? How do you determine the additional thermal energy that is generated as the blocks continue to move together after the collision?

Understanding moments of a system with trestles.

How can I calculate the moments on a system with trestles?

Given initial velocities of two particles, what are their velocities after they collide?

Two particles, of mass 1 kg and 3 kg, are traveling towards each other with velocities of 100 m/s and -40 m/s respectively. Using the laws of physics (e.g. conservation of energy & momentum) calculate the following: a) What are the initial energies of the particles? b) What are the final velocities of the particles? c) Wh ...continues