- #1

knowlewj01

- 110

- 0

## Homework Statement

Draw a clearly labelled “Minkowski spacetime” diagram illustrating two events

((1) a farmer firing his laser gun at his cow, which is sitting along his positive x-direction, and

(2) the cow dying) as observed by two observers (S at rest in the farmer’s and cow’s frame,

and S’ moving at 0.5 c in the direction of the negative x direction.

Show on the diagram, qualitatively, hyperbolae which determine the scale of the ct, x and

ct’, x’ axes. Using the diagram, is there any frame S’ where it appears that the cow dying

caused the farmer to shoot his gun?

## Homework Equations

## The Attempt at a Solution

In my diagram so far i have included a rest frame and a frame moving 0.5c in the -ve x direction. the event of the cow's death [red dot] lies on the lightlike region of the farmer firing the laser [black dot]. how do i construct a hyperbola that will give me the scale of ct' and x' on the x and ct axes? i have seen examples where the axes are changed in the opposite direction but i can't figure out how the negative direction affcts this. can anyone point me in the right direction?. Thanks.

Edit: the t on the diagram for the S frame is supposed to be 'ct'. ;)