High School

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A submarine moved 63 kilometers south in 1.5 hours at a constant velocity. During that time, it passed beneath a speedboat that was moving at 14 kilometers per hour. What was the submarine's velocity?

Answer :

Final answer:

The submarine's velocity is calculated by dividing the distance traveled by the time taken, resulting in a velocity of 42 kilometers per hour (km/h) south.

Explanation:

The student's question asks to determine the submarine's velocity given it moved 63 kilometers south in 1.5 hours. To find the velocity, we use the formula for constant velocity, which is:

Velocity = Distance / Time

Thus, the submarine's velocity = 63 km / 1.5 hours = 42 kilometers per hour (km/h). So, the submarine was moving at 42 km/h south.

In the context given, the speedboat's velocity of 14 kilometers per hour is irrelevant to the calculation of the submarine's velocity, as it does not affect the submarine's independent movement.

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