Tuna can

A Chemistrist, Physicist an d Mathematician were discussing how to open a tuna can.


Chemistrist: I will break the coconuts and mix the coconut milk with acids, then use the mixture to melt tuna can.

Physicist: No! you will spoil the food! well, by Newton's second law, I put two coconuts at opposite sides of can, same distance apart. Then apply same force. The impulse will help us open the can!

mathematician: Come on, what's the problem? Suppose we have a tuna can. Let can opener be given.....