All Problems

The Fundamental Equation of Dynamics

Problem 1.81

Prism \(l\) of mass \(m_{1}\) and with angle \(\alpha\) (see Fig. 1.23) rests on a horizontal surface. Bar 2 of mass \(m_{2}\) is placed on the prism. Assuming the friction to be negligible, find the acceleration of the prism.

Reveal Answer
w=gsinαcosα/(sin2α+m1/m2)w=g \sin \alpha \cos \alpha /\left(\sin ^{2} \alpha+m_{1} / m_{2}\right)