A1,000 kg torpedo is tired from a submerged submarine toward a target at a speed of 20 m/s. after 100 seconds the torpedo impacts the target. how far away was the target?

2 Kilometers

Explanation:

The mass of the torpedo isn't really required here in this scenario.

Basically, the formula, Distance = Speed x Time is used here

So, Distance = 20 m/s x 100 s

We get 2000 metres

Convert that into kilometers if required and you get 2 kilometers.

Hope this helped.