A 15,000 kg rocket blasts off from Earth with a uniform upward acceleration of 2.0 m/s2 and feels no air resistance.The thrust force its engines must provide during this acceleration is 30,000 N upward.

Question

Quizplus · Accepted Answer

The thrust force must overcome both the gravitational force (weight) and provide the net force for the acceleration. The weight of the rocket is 15,000 kg * 9.8 m/s² = 147,000 N. The total thrust needed is 147,000 N + (15,000 kg * 2.0 m/s²) = 177,000 N.

A 15,000 Kg Rocket Blasts Off from Earth with a Uniform