Mathematical and Physical Journal
for High Schools
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# Problem P. 4810. (February 2016)

P. 4810. A body of mass 1 kg is suspended by means of a spring and a thread between two walls as shown in the figure. The measure of both angles between the thread and the horizontal and the spring and the horizontal is $\displaystyle 30^\circ$.

$\displaystyle a)$ Determine the force exerted by the spring.

$\displaystyle b)$ What is the initial acceleration of the object if the thread breaks, and into which direction does the object begin to move?

(4 pont)

Deadline expired on March 10, 2016.

### Statistics:

 104 students sent a solution. 4 points: 85 students. 3 points: 6 students. 2 points: 8 students. 1 point: 2 students. 0 point: 3 students.

Problems in Physics of KöMaL, February 2016