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.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.