Đề IPHO(vật lí quốc tế) 1983-2

For : the evolution of the square of the speed as function of the position 4.00 points... 1.00 p the evolution of the speed as function of the position 1.00 p or the evolution of th

( ) ( )











⋅

= +

⋅

⋅

= +

⋅

=

f c

x

f c

f

F D E x F

F D E x U

F D x W

0 0

0

1.00

p

f

c x

F

E x F

0.50

p

p

I.b. For:

1.00 p

2.00 points

I.c. For :

the evolution of the square of the speed as function of the position 4.00 points

1.00 p the evolution of the speed as function of the position

1.00 p or

the evolution of the square of the speed as function of the position

1.00 p the evolution of the speed as function of the position

1.00 p

nts

Professor Delia DAVIDESCU, National Department of Evaluation and Examination– Ministry of Education and

Research- Bucharest, Romania