How long will it take to travel 200km traveling 100 m/s

2000s

Explanation:

We first convert the two values to common units. The easiest way is to convert 200Km to meters:

200×1000=200000m    (1Km=1000m)

Time=Distance/Speed

time=200000m/100m/s

=2000s

multiply 2kg by latent heat of vap

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.