At a known mass of the spaceship, the amount of energy that would be needed to accelerate the spaceship to half the speed of light is 1.5 x 10⁸ x m (J).
The amount of energy that would be needed to accelerate a large spaceship to half the speed of light is calculated as folllows;
E = mc²
where;
half the speed of light = 1.5 x 10⁸ m/s
E = 1.5 x 10⁸ x m
Thus, at a known mass of the spaceship, the amount of energy that would be needed to accelerate the spaceship to half the speed of light is 1.5 x 10⁸ x m (J).
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