Spaceship 1 and spaceship 2 have equal masses of 200 kg. Spaceship 1 has a speed of 0 m/s, and spaceship 2 has a speed of 10 m/s. What is the magnitude of their combined momentum

2000 kg m/s

Explanation:

The momentum of an object is a vector quantity whose magnitude is given by

where

m is the mass of the object

v is the velocity of the object

and its direction is the same as the velocity.

In this problem, we have:

- Spaceship 1 has

m = 200 kg (mass)

v = 0 m/s (zero velocity)

So its momentum is

- Spaceship 2 has

m = 200 kg (mass)

v = 10 m/s (velocity)

So its momentum is

Therefore, the combined momentum of the two spaceships is

b. a lightning bug, plug of grass, and a worm