*If someone says v-u=0 ,what does it mean. *What is the relation among mometum,mass and velocity. *A moving bus a little distance forward ev

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*If someone says v-u=0 ,what does it mean. *What is the relation among mometum,mass and velocity. *A moving bus a little distance forward even when breaks are applied on it which Newton’s laws work here? *Under what conditions acceleration of a moving object will be zero?

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Diễm Kiều 5 years 2021-08-09T10:23:26+00:00 1 Answers 12 views 0

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  1. Neala
    0
    2021-08-09T10:24:53+00:00
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    Answer:

    1) It means that the acceleration is 0

    2) Momentum, p = Mass, m × Velocity, v

    3) Newton’s second law of motion

    4) The conditions where there are no resultant forces acting on the object

    Explanation:

    1) The value v – u =  0 means that the acceleration is 0

    The relation between v and u is v = u + a·t

    v – u = a·t

    When v – u = 0 we have;

    a·t = 0

    a = 0 or t = 0

    Acceleration, a = 0

    2) The relation between momentum, mass and velocity is

    Momentum, p = Mass, m × Velocity, v

    p = m × v

    3) The bus moving a little distance forward even when the breaks are applied is due to the following relation;

    Force = Rate of change of momentum produced

    Which is Newton’s second law of motion

    Therefore, where the the force is low, the rate of change of the momentum and therefore, the velocity will be low, and the bus will still move further after applying the breaks

    4) According to Newton’s first law of motion, the conditions under which the acceleration of a moving object will be zero includes conditions where there are no resultant forces acting on the object.

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