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2 March, 19:33

4) Consider a separate rocket, also in deep space with a mass of 30.0 kg. If the rocket is

observed to be travelling at v = 5.00m/s at t = 3.00 s and then travelling at v = - 2.00m/s at t = 14.0 s

with constant acceleration, calculate:

a) the acceleration, à.

b) the force F, acting on the rocket from the thrusters.

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Answers (1)
  1. 2 March, 19:38
    0
    a) Acceleration is the change in velocity over change in time.

    a = Δv / Δt

    a = (-2.00 m/s - 5.00 m/s) / (14.0 s - 3.00 s)

    a = - 7/11 m/s²

    a ≈ - 0.636 m/s²

    b) Force is mass times acceleration.

    F = ma

    F = (30.0 kg) (-0.636 m/s²)

    F = - 19.1 N
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