Right before takeoff,a passenger on a plane flying from town A to town B synchronizes his clock with the clock of his friend waiting for him in town B. The plane flies without interruption at a constant velocity of 280 m/s. The moment the plane touches the ground the two friends check simultaneously the indication of their clocks.The clock of the passenger on the plane shows that it takes exactly 7.50 h to travel from A to B. Ignoring any effects of acceleration,the difference between the readings of the clocks B and A is
A)11.8 ns.
B)-11.8 ns.
C)23.5 ns.

Question

Quizplus · Accepted Answer

The time dilation effect due to the plane's velocity causes the clock on the plane to run slower than the clock on the ground. The difference in time, calculated using the formula for time dilation in special relativity, is approximately 11.8 nanoseconds.

Right Before Takeoff,a Passenger on a Plane Flying from Town