Question

An aircraft fying at the height of 240 m above the sea level drops a bomb on a submarine lying 420 m
below the sea level. The bomb falls down at the average speed of 60 m per second How much tune
will it take to strike the submarine?​

Answer 1

Answer:

11 Seconds

Step-by-step explanation:

An Aircraft = 240m above sea level

Submarine = 420m below sea level

Total = 420 + 240 = 660m

Distance = 660m

Speed Of Bomb = 60m/s

Time = D

S

= 660

60

= 11 seconds to reach Submarine

Thank You

Answer 2

Answer:

Time taken to strike the submarine is 11 seconds.

Step-by-step explanation:

According to the question,

• Height above sea level at which the aircraft flies = 240 m

• Depth below sea level at which the submarine is lying = 420m

• Average speed with which the bomb falls down = 60 m/s

∴

Total distance the bomb falls to strike the submarine = 240 +420 = 660m

As we know by using Time, Distance and Speed concept,

Time = $\frac{Distance}{Speed}$

=$\frac{660}{60}$

= 11 s

The correct answer is 11 seconds.