- #1
stunner5000pt
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Using speical relativity
a train is moving along a track is v = (3/5) c. At the instant the train passes a construction worker standing right besides the track both the worker and the train driver set their watches to read the same time. A bridge collapses 200m furhter up ahead the track 2.0 e -7 seconds later, according to construction worker. At what time did the bridge explode according to the train driver? while setting her watch to 0 the consturction worker inadvertently sent a detonation signal to some dynamit loacted 200m at the foot of the bridge. Could the dynamite exploding have caused the bridge to collapse?
First of all what time did the bridge collapse according tothe train?
It's either one of two things, longer or shorter.
the worker will see the clock move slower on the train, and the train will see the workers clokc move faster. So the time seen by the train driver is 2.0 e -7 / gamma = 1.6 e -7 seconds
Could hte dynamite have caused the bridge to collapse?
not quite sure about this. it is as easy as common sense would say? But there must be something that makes this a second year physics class assignment worthy
a train is moving along a track is v = (3/5) c. At the instant the train passes a construction worker standing right besides the track both the worker and the train driver set their watches to read the same time. A bridge collapses 200m furhter up ahead the track 2.0 e -7 seconds later, according to construction worker. At what time did the bridge explode according to the train driver? while setting her watch to 0 the consturction worker inadvertently sent a detonation signal to some dynamit loacted 200m at the foot of the bridge. Could the dynamite exploding have caused the bridge to collapse?
First of all what time did the bridge collapse according tothe train?
It's either one of two things, longer or shorter.
the worker will see the clock move slower on the train, and the train will see the workers clokc move faster. So the time seen by the train driver is 2.0 e -7 / gamma = 1.6 e -7 seconds
Could hte dynamite have caused the bridge to collapse?
not quite sure about this. it is as easy as common sense would say? But there must be something that makes this a second year physics class assignment worthy