Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
Already signed up?
New to KöMaL?

Problem P. 4095. (October 2008)

P. 4095. The traffic in some part of a three-lane motorway is restricted to only one lane. In this part the cars move uniformly at a speed of 54 km/h and 11-m long gaps are formed between them.

a) What is the speed of the cars before the one-lane part, if the gap between them is 2 m?

b) What will the length of the gaps between the cars be after the one-lane part if the cars speed up to a velocity of 126 km/h?

Let us consider the length of each car 4 m.

(4 pont)

Deadline expired on November 11, 2008.


171 students sent a solution.
4 points:85 students.
3 points:7 students.
2 points:21 students.
1 point:32 students.
0 point:26 students.

Problems in Physics of KöMaL, October 2008