The horizontal surface on which the 2.0 – kg block slides is frictionless. The speed of the block before it touches the spring is 9.0 m/s. H

Question

The horizontal surface on which the 2.0 – kg block slides is frictionless. The speed of the block before it touches the spring is 9.0 m/s. How fast is the block moving at the instant the spring has been compressed 174.5 mm

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Kim Cúc 4 years 2021-07-21T20:31:58+00:00 1 Answers 12 views 0

Answers ( )

  1. King
    0
    2021-07-21T20:33:52+00:00
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    Answer:

    0.918 seconds

    Explanation:

    M = 2kg

    V = 9.0 m/s

    g = 9.8 m/s

    F = Mg cosΘ

    Θ = 0°

    But F = Ma

    a = v / t

    F = m*v / t

    Mv / t = mg cos0

    V / t = g

    t = v / g

    t = 9.0 / 9.8

    t = 0.918s

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