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Problem P. 4752. (September 2015)

P. 4752. The string of a bow is pulled by a force of 200 N, such that the arrow is moved backwards by a distance of 50 cm. The applied force is proportional to the displacement of the midpoint of the string. With this bow an arrow of mass 40 g is shot vertically upwards. To what maximum height can the arrow fly if 40% of the elastic energy is used?

(4 pont)

Deadline expired on 12 October 2015.


188 students sent a solution.
4 points:155 students.
3 points:18 students.
2 points:10 students.
1 point:3 students.
0 point:1 student.
Unfair, not evaluated:1 solution.

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