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

Problem P. 4760. (October 2015)

P. 4760. The speed of a car travelling on a highway is \(\displaystyle v_0\). At a certain instant the speed of the car is started to vary uniformly, and from that instant the first 84 m is covered in 3 s, and the next 84 m is covered in 4 s.

Determine the initial speed of the car \(\displaystyle v_0\), and its acceleration \(\displaystyle a\).

(4 pont)

Deadline expired on November 10, 2015.


202 students sent a solution.
4 points:160 students.
3 points:13 students.
2 points:7 students.
1 point:5 students.
0 point:13 students.
Unfair, not evaluated:4 solutionss.

Problems in Physics of KöMaL, October 2015