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Firecrackers 1 and 2 are 600 m apart. You are standing exactly halfway between them. Your lab partner is 300 m on the other side of firecracker 1. You see two flashes of light, from the two explosions, at exactly the same instant of time. Define event 1 to be “firecracker 1 explodes” and event 2 to be “firecracker 2 explodes.” According to your lab partner based on measurements he or she makes, does event 1 occur before, after or at the same time as event 2? Explain
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