<p>A 10 kg object is rotating about a point on a wire 3 meters in length at the rate of 120 rad/sec without breaking the wire. What is the numeric value ( and units) of the velocity vector and what angle does it make with the tangent at any point ? What is the minimum tensile strength of the wire assuming that it has a 50% safety factor. ( The minimum tensile strength of the wire is 1.5 times the working tensile strength).</p>
<p>omega<em>r=velocity
120</em>3=360m/s</p>
<p>always parallel with tangent</p>
<p>the tension force of wire=centripetal accler=mv^2/r=10<em>360^2/3=10</em>43200*1.5=648000N</p>
<p>I think at least</p>
<p>I probably can, but I'm too lazy.</p>
<p>What about this one? ---A pendulum with a mass of 2 kg and a length of 3 meters is pulled back 13.75 degrees from the vertical. What is it's Potential Energy ? It is released from its original position. What is its tangential velocity when it reaches the bottom of its swing? What is the pendulum's tangential velocity, the tangential acceration, kinetic energy, potential energy and tension in the suspension rod when it reaches its starting position after one swing?</p>
<p>Cool Nalcon , that's what i originally got ...</p>
<p>What about this one? ---A pendulum with a mass of 2 kg and a length of 3 meters is pulled back 13.75 degrees from the vertical. What is it's Potential Energy ? It is released from its original position. What is its tangential velocity when it reaches the bottom of its swing? What is the pendulum's tangential velocity, the tangential acceration, kinetic energy, potential energy and tension in the suspension rod when it reaches its starting position after one swing?</p>
<p>mgh = 1/2mv^2
l(1-cosX) g = .5 v^2 (l= length string)
acceleration = l * g * sin X
Tension you would solve with weight.</p>