The final speed is 3 m/s
Explanation:
We can solve this problem by using the law of conservation of momentum. In fact, in absence of external forces, the total momentum of the two spaceships must be conserved. So we can write:
where
is the mass of each spaceship
is the initial velocity of spaceship 1
is the initial velocity of spaceship 2
v is the combined velocity of the two spaceships after the collision
Solving for v, we find
So, their final speed is 3 m/s.
Learn more about conservation of momentum:
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Answer:
18.75
Explanation:
p=mv, where p is momentum, m is mass, and v is velocity. For the car:
p=1200*2.5=3000
For the deer:
3000=160*v
v=18.75m/s
Hope this helps!
Yes, but there is only 1 atom like that and is is hydrogen. Hydrogen is the only element that could have a nucleus with one proton and no neutrons exist.