- #1

DunWorry

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## Homework Statement

A projectile of mass 22kg is fired at an angle of 55 degrees to horizontal with a speed of 350ms-1. At the highest point of trajectory the projectile explodes into two equal fragments, one lands directly beneath the explosion and the other flies off.

I have done the parts of the question, worked out the first piece lands 5867m and the second piece lands 17600m from the cannon. I have also worked out the speeds of each fragment at the moment of the explosion

The last part says what is the energy released in the explosion?

I can't formulate it in my head, I can only think of KE[itex]_{initial}[/itex] + Potential energy [itex]_{explosion}[/itex]= GPE[itex]_{max height}[/itex] + KE[itex]_{left over}[/itex] (because its still moving in x direction at max height)+ KE[itex]_{explosion}[/itex]

I'm not sure of how I am going to find this energy.

Thanks