Van Hau's shot was included in the semester exam

vietnamnet.vn• December 16, 2019 18:54

The first semester Physics test for grade 10 at An Duong High School (An Duong district, Hai Phong) requires testing knowledge through a hypothetical situation about a shot by player Doan Van Hau.

Recently, 10th grade students of An Duong High School (Hai Phong City) took a Physics semester test with a special question when given a situation related to player Doan Van Hau's shot during a practice session to prepare for the men's football final at SEA Games 30.

Specifically, the question is given in a training session preparing for the final match of SEA Games 30, player Van Hau kicks a ball weighing m=220g that is standing still on a flat horizontal field, the contact time between the foot and the ball is 0.2 seconds, the ball moves on the field at a speed of 10m/s.

The test requires students to:

a. Calculate the acceleration of the ball and the force Van Hau exerted on the ball.

b. After Van Hau kicked the ball, it rolled 10 meters and then stopped. Calculate the frictional force of the field acting on the ball. Ignore air resistance.

c. Suppose when the ball is moving on the field with a speed of 10m/s, it collides with another ball with a mass m2=100g, after the collision it bounces back in the same direction with a speed of 4m/s. Find the speed of the ball with a mass m2=100g immediately after the collision.

Doan Van Hau. Photo: Quyet Thang

This is the Physics test for the first semester of all 10th grade students at An Duong High School (An Duong district, Hai Phong city) given by teacher Dao Manh Huy, Physics teacher of the school.

Teacher Huy said that realizing the students' interest in the men's football final match of the 30th SEA Games, he included a football-related situation that also tested knowledge in the exam.

According to Mr. Huy, it is just a hypothetical situation, instead of putting object A and object B in motion, he replaced it with Doan Van Hau's kick. When teaching and testing, he also often brings in real-life situations for students to associate and apply within the framework of the allowed knowledge content.

Doan Van Hau. Photo: Quyet Thang

Doan Van Hau and the U22 Vietnam team have just won the men's football championship at the 30th SEA Games held in the Philippines. In this tournament, Van Hau showed his solidity in defense on the left wing. Not only did he do well in defense, Van Hau also showed his brilliant performance when he contributed 2 goals in the final match against U22 Indonesia, thereby winning the Gold medal in men's football for the first time in the regional tournament with his teammates.

Doan Van Hau (born April 19, 1999, from Thai Binh) is a player who grew up at the training center of Hanoi Football Club. He is currently playing for SC Heerenveen club as a defender.

Van Hau was called up to the Vietnam national team when he was only 18 years old and became the youngest player on the Vietnam team in 2017.

vietnamnet.vn