An enemy sub is approaching a us submarine at 25.0 km/hr that is waiting in ambush. the us submarine needs to know the exact position of the enemy sub in order to calibrate their torpedo. calculate the distance the enemy sub is when the time for a reflected sonar signal to return to the us sub is 3.5 seconds

Question

Anthony Moreno

Physics

20 January, 13:30

An enemy sub is approaching a us submarine at 25.0 km/hr that is waiting in ambush. the us submarine needs to know the exact position of the enemy sub in order to calibrate their torpedo. calculate the distance the enemy sub is when the time for a reflected sonar signal to return to the us sub is 3.5 seconds

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Myla Harrington · Answer 1

Speed of the Enemy sub ... > 25.0 km/hr which is (25/3.6) m/s = 6.94 m/s

We use the expression Speed = Distance / time to find the distance

D = Speed*Time = 6.94 m/s * 3.5 = 24.305 m

The enemy sub will be 24.305 m closer