Recent content by xdevinx

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    Solving Static Equilibrium: 15.5 m Ladder & 500 N Weight

    Homework Statement A 15.5 m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes a 56.0° angle with the horizontal. (a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 810 N firefighter is 4.10 m from the bottom...
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    How Much Mass is Needed for a Counterweight to Balance a Truck on an Incline?

    Homework Statement Find the mass m of the counterweight needed to balance the 1600 kg truck on the incline. Assume all pulleys are frictionless and massless. Picture attached Homework Equations Conditions for static equilibrium so that angular acceleration=0: \sumTorque=0 The...
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    Rotational Dynamics/moment of inertia/frictional torque

    Awesome. I figured out the moment of inertia for the wheel by using the constant angular acceleration formulas, as well as the number of revolutions for the wheel. First, I used Omega(final)=Omega(initial)+Angular Acceleration*time Then I was able to find the moment of inertia by plugging it...
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    Rotational Dynamics/moment of inertia/frictional torque

    Homework Statement The combination of an applied force and a constant frictional force produces a constant total torque of 36.8 N·m on a wheel rotating about a fixed axis. The applied force acts for 5.92 s. During this time the angular speed of the wheel increases from 0 to 10.2 rad/s. The...