# physics Classical Mechanics

Consider a rocket in space that ejects burned fuel at a speed of vex= 1.5 km/s with respect to the rocket. The rocket burns 8 % of its mass in 280 s (assume the burn rate is constant).

(a) What is the speed v of the rocket after a burn time of 140.0 s? (suppose that the rocket starts at rest; and enter your answer in m/s)

v=

Consider a rocket in space that ejects burned fuel at a speed of vex= 1.5 km/s with respect to the rocket. The rocket burns 8 % of its mass in 280 s (assume the burn rate is constant).

(a) What is the speed v of the rocket after a burn time of 140.0 s? (suppose that the rocket starts at rest; and enter your answer in m/s)

v=

1. 👍 0
2. 👎 0
3. 👁 164

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