After an incident over the mid-semester break involving a packet of Maltesers, a flooded creek,
and a wombat, a 15,000 kg salvage helicopter is lifting a 4,500 kg truck with an upward
acceleration of 1.4 m.s-2. Calculate:
1) The force the air exerts on the helicopter blades.
2) The tension...
Vectors A, B and C form a triangle. The angle between A and B is \theta and the vectors are related by C=A-B. Compute C . C in terms of the magnitudes A, B and the angle \theta and derive the law of cosines C^2 = A^2 + B^2 - 2AB cos \theta .
I have no idea what C . C means but I asked and...
Consider a bead of mass m that is free to move on a thin, circular wire of
radius r. The bead is given an initial speed v0, and there is a coefficient of
kinetic friction F_k. The experiment is performed in a spacecraft drifting inspace. Find the speed of the bead at any subsequent time t...
The machine shown in the figure below can be used to give you a good feel
for forces. Assuming a massless, frictionless pulley and a massless string,
calculate the magnitude of the acceleration on both bodies and the tension in
the string T...