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A particle has a mass of 5kg. It is held at a height of 3 metres above the ground. Find:
a.Its potential energy
b.It’s kinetic energy when is hits the ground
c.The speed with which the particle hits the ground


    a) M g H (PE at height H)
    b) M g H (KE at ground)
    c) sqrt(2*M*KE)

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