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-   -   Gravitational attraction (https://www.askmehelpdesk.com/showthread.php?t=292166)

  • Dec 14, 2008, 06:47 PM
    Lolo06
    Gravitational attraction
    What is the gravitational attraction on a 1000 kg object where the aceleration due to gravity is 17.5 m/s2?

    What it the acceleration of a car that spen off from a stop light to a velocity of 15 m/s in 5.6s?

    How much force was necessary to accelerate the car above if the car's mass is 1500 kg?
  • Dec 15, 2008, 02:10 AM
    visharad

    1) M = 1000 kg
    g = 17.5 m/s^2
    Gravitational attraction = Mg
    So just multiply M and g and you will get the answer. The result will be in N.

    b)vo = 0
    v = 15 m/s
    t = 5.6 s
    a = (v - vo)/t
    Do further calculation. Here vo = initial velocity, v = final velocity, t = time, a = acceleration

    c) Mass = 1500 kg
    In previous part you calculated acceleration. Multiply mass with acceleration. You will get force in N.

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