Question

A submarine is at 350 m below sea level. It ascends for 10 seconds and then

stops. Its final position is 100 m below the sea level. Find the speed of the

submarine.

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Answer 1

Answer:

90 Km/hr

Step-by-step explanation:

Total distance = 350 - 100

= 250 m

Time = 10 sec

Speed = distance / time

= 250 / 10

= 25 m/s

= 90 km/hr

Hence, speed of the submarine = 90 km/hr.

Answer 2

Answer:

25 m/s

Step-by-step explanation:

speed = distance/time

distance travelled = 350m - 100m = 250m

time = 10s

= 250/10 m/s

=25 m/s