A 10,000-kg rocket blasts off from earth with a uniform upward acceleration of 2.00 m/s² and feels no air resistance.The upward thrust force its engines must provide during this acceleration is closest to A) 20,000 N. B) 980,000 N. C) 118,000 N. D) 78,000 N.

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Quizplus · Accepted Answer

To find the thrust force, we need to consider both the force required to overcome gravity and the force needed to accelerate the rocket upwards. The force to overcome gravity is $F_g = mg$, where $m = 10,000 \, \text{kg}$ and $g = 9.8 \, \text{m/s}^2$, giving $F_g = 98,000 \, \text{N}$. The force needed for acceleration is $F_a = ma$, where $a = 2.00 \, \text{m/s}^2$, giving $F_a = 20,000 \, \text{N}$. The total thrust force is the sum of these two forces: $F_{total} = F_g + F_a = 98,000 \, \text{N} + 20,000 \, \text{N} = 118,000 \, \text{N}$.

A 10,000-Kg Rocket Blasts Off from Earth with a Uniform