Problem 2-98 - Linear Kinematics - (a)
A helicopter is traveling horizontally, straight toward a cliff. When 700m from the cliff, it sends a sonar signal and 3.4s later receives the reflected signal. Assuming the signal travels at 350m/s, determine the speed of the helicopter.
Correct.
The time of flight of the signal is:
(A) 3.4s
(B) 3.4s+ the time during which the helicopter moves.
(C) 3.4s− the time during which the helicopter moves.