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25 June, 14:56

A 63 kg astronaut drifting with 7.0 m/s to the right with

respect to a spacecraft uses a jetpack to slow down.

Suppose it takes 14.0 s to come to a stop with respect to the spacecraft. What is the force exerted by the jetpack?

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Answers (1)
  1. 25 June, 15:23
    0
    31.5N

    Explanation:

    M = 63kg, v = 7.0m/s t = 14.0s F = ?

    Force = Mass * acceleration

    but acceleration = change in velocity / time

    a = dV/dt

    F = (63 * 7.0) / 14

    F = 31.5N
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