According to the momentum principle, the change in momentum of an object equals the impulse, which depends on______

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According to the momentum principle, the change in momentum of an object equals the impulse, which depends on______

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Cherry 2 months 2021-08-21T23:09:54+00:00 1 Answers 0 views 0

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    2021-08-21T23:11:12+00:00

    Answer: The momentum principle depends on MASS and VELOCITY.

    Explanation:

    The momentum principle states that net force changes the the momentum of an object where momentum is the product of the MASS of the body and it’s VELOCITY.

    Thus, momentum = mass(kg) ×velocity( m/s)= kgm/s ( derived unit)

    Also to determine the rate of change of momentum;

    Mass=m, initial velocity =u, final velocity = V and time =t

    Initial momentum = mu

    Final momentum = mv

    Change in momentum = mv – mu

    = m( v- u)

    Rate of change of momentum=

    m( v -u)/t –> equation 1

    But V = u + at

    Hence, a = v -u/t

    Substitute for v -u/ t in equation 1

    F = Kma, where k is constant and has the value of 1.

    Therefore F = ma

    Newton is the SI unit if force. It is defined as the force which gives a mass of 1kg an acceleration of 1 m/s².

    IMPULSE is defined as the change of momentum of a body (mv-mu) or the product of force and time.

    Thus impulse = force × time = m (v-u)

    The unit is Ns ( Newton seconds) which is the same as change in momentum.

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