Firecrackers 1 and 2 are 600 m apart. You are standing exactly halfway between t

Question

Firecrackers 1 and 2 are 600 m apart. You are standing exactly halfway between them. Bob is standing 300 m on the other side of firecracker 1. You see the flashes of light from the two firecrackers exploding at the exact same instant. Does Bob see both firecrackers explode at exactly the same time, firecracker 1 explode first, or firecracker 2 explode first? Explain. Bob flies from Los Angeles to New York City. He carries an accurate stopwatch and measures the flight time. You, on the ground, also measure the flight time. To measure the flight time, the two events are the plane takes off and the plane lands. a. Who, if anyone, measured the proper time? Explain. b. Who, if anyone, measures the slightly shorter flight time? c. Who, if anyone, measures the slightly longer flight time?

Explanation / Answer

7)from the defination of speed,

speed = distance/time => time = speed x distance

You see the flashes from both 1 and 2 at the same time, as your distance from both 1 and 2 is same.

For Bob, who is closer to 1 and farther to 2 will see the explosion of 1 first and 2 later.

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