Jennifer bungee-jumps from a bridge (event A). Jennifer's bungee cord is perfectly elastic, so she bounces exactly back up to the bridge and lands on her feet (event B). The time between these events is measured by Jennifer's watch, a stopwatch held by Jennifer's friend, Rob, who is standing on the bridge, and by two passengers (one present at event $A$ and one present at event $B$ ) who are riding on a train traveling at a constant velocity across the bridge at the time (the passengers have synchronized watches and compare readings later). Assuming the earth's frame is inertial, who measures
-(b) the shortest time interval between these events?
A) Jennifer
B) Rob
C) The train passengers

Question

Quizplus · Accepted Answer

In the scenario described, Jennifer is in a non-inertial frame of reference due to the acceleration experienced during the bungee jump. According to the theory of relativity, time dilation occurs for observers in motion relative to an inertial frame. However, since Jennifer is accelerating, her frame is non-inertial, and the effects of acceleration could cause her to measure a different time interval compared to observers in inertial frames. Rob and the train passengers are in inertial frames relative to the event, with the train passengers moving at a constant velocity and Rob presumably stationary relative to the Earth. Among these, the non-inertial observer (Jennifer) would experience the most significant effects on time measurement due to her unique state of motion, potentially measuring the shortest time interval due to the complexities introduced by acceleration and the equivalence principle.

Jennifer Bungee-Jumps from a Bridge (Event A) AAA And One Present at Event

Jennifer Bungee-Jumps from a Bridge (Event A) $A$ And One Present at Event