Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
 Already signed up? New to KöMaL?

# Problem P. 4517. (February 2013)

P. 4517. Four similar rods of uniform density are connected with frictionless hinges, and this frame is placed to a horizontal smooth tabletop, such that its shape is a square. Vertex P is acted upon by a horizontal force in the direction of the diagonal, and due to this force it begins to move at an acceleration of aP. What is the acceleration of the opposite vertex Q at which it begins to move?

(6 pont)

Deadline expired on March 11, 2013.

Sorry, the solution is available only in Hungarian. Google translation

Megoldásvázlat. $\displaystyle a_Q=-\frac{1}{5}\,a_P.$ (Ez az eredmény az összes testre felírt haladó- és forgómozgási egyenletekből, vagy pl. az indulást követő nagyon rövid időtartamra alkalmazott munkatételből kapható meg.)

### Statistics:

 6 students sent a solution. 6 points: Fehér Zsombor, Papp Roland, Szabó 928 Attila. 5 points: Sárvári Péter. 4 points: 1 student. 1 point: 1 student.

Problems in Physics of KöMaL, February 2013