Does the spaceship speed ever exceed the speed of light

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Reference no: EM13996366

A spaceship of mass m moves in the positive x-direction with speed

u(t) = c²t / √(a² + c²t²)

where a > 0 is a constant with dimensions of length.

(a) Does this speed ever exceed the speed of light?

(b) What is the force, F(t), acting on the spaceship as a function of time?

Reference no: EM13996366

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