Problem P. 4056. (March 2008)
P. 4056. An object of mass m is projected vertically up with a speed of v_{0}. At the same moment another object of mass M, which is initially above the projected one, is dropped from a height of h. The two pointlike objects collide totally inelastically, and they stick to each other.
With what speed will they hit the ground?
(Data: m=1.25 kg, v_{0}=19 m/s, M=2 kg, h=20 m.)
(4 pont)
Deadline expired on 11 April 2008.
Statistics:
>176 students sent a solution.  
4 points:  107 students. 
3 points:  33 students. 
2 points:  23 students. 
1 point:  4 students. 
0 point:  1 student. 
Unfair, not evaluated:  8 solutions. 
