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14 November, 15:37

A force of 1 N will cause a mass of 1 kg to have an acceleration of 1 m/s2. Therefore, a force of 7 N applied to a mass of 7 kg will cause it to accelerate at what rate?

1 m/s2

0.14 m/s2

8 m/s2

49 m/s2

7 m/s2

+2
Answers (2)
  1. 14 November, 17:13
    0
    The correct choice is 1 m/s2

    Explanation:

    According to the unitary method if a force of 1 N will cause a mass of 1 kg to have an acceleration of 1 m/s2.

    Then obviously force of 7 N applied to a mass of 7 kg will also cause the acceleration of the same rate which will be 7m/s^2

    Or

    we can use the Newtons law

    F = m a

    7 = 7 * 1

    = 1
  2. 14 November, 18:54
    0
    1 m/s^2

    Using F=ma,

    7=7a

    a=1
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