Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation

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Problem P. 4034. (January 2008)

P. 4034. A body of mass m=1.8 kg is placed to an inclined plane, the angle of inclination is $\alpha$ =30^o, and is attached to the top end of the slope wit a thread which is parallel to the slop. Then the slope is moved with a horizontal acceleration of a. Friction is negligible.

a) Find the acceleration if the body pushes the slope with a force of $\frac{3}{4}mg$ .

b) Find the tension.

(4 pont)

Deadline expired on February 11, 2008.

Statistics:

205 students sent a solution.

4 points: 150 students.

3 points: 20 students.

2 points: 8 students.

1 point: 8 students.

0 point: 15 students.

Unfair, not evaluated: 4 solutionss.

Problems in Physics of KöMaL, January 2008

205 students sent a solution.
4 points:	150 students.
3 points:	20 students.
2 points:	8 students.
1 point:	8 students.
0 point:	15 students.
Unfair, not evaluated:	4 solutionss.