Hey there,

I ve got a maths exam in under a week now and I just getting various methods into my head, although I know the moments and impulse and the formulae involved I dont know how the hell they solved this.

A shell of mass 50kg is fired with speed 560ms. Given that the shell is in the barrel of the gun for 1/20 second, calculate the average force in kN, exerted on the shell by the explosive charge.

Ive been trying to work it out for a couple of hours now and there are no examples in the text book so could someone please show me the way to solve it.

Thanks