If the work required to move a 0.35 c charge from point a to point b is 125 j, what is the potential difference between the two
1 answer:
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The astronaut final velocity is 0.06 m/s to the right
Explanation:
In absence of external forces, the total momentum of the box-astronaut system is conserved.
At the beginnig, the total momentum of the two is zero, since they are at rest:
While the final momentum, after the astronaut throws the box, is:
where
m = 11 kg is the mass of the box
M = 79 kg is the mass of the astronaut
v = -0.45 m/s (to the left) is the velocity of the box (we take left as negative direction)
V is the final velocity of the astronaut
The total momentum is conserved, so
And solving , we find V:
And the positive sign indicates that the direction is to the right.
Learn more about momentum:
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