Question

a sumbarine movee from the water surface at a speed of ( - 20 ) m per minute. how far is the submarine from the water surface at the end of 7 minutes​

Answer 1

Answer

consider the water surface level as zero

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Answer 2

Answer:

a submarine move at the speed of -20m per minute that means it submerge 20m below sea in 1 min.

speed= -20m/min

time= 7 minutes.

distance= speed x time

distance = -20*7

= -140m

distance submerged is -140 m.

so its 140 m below sea level. or 140m away from the water surface.