Physics

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At t=1.0s, a 0.60kg object is falling with a speed of 6.0 m/s. At t=2.0s, it has a kinetic energy of 25 J.

a) What is the kinetic energy of the object at t=1.0s?

b)What is the speed of the object at t=2.0s?

c) How much work was done on the object between t=1.0s and t=2.0s?

  • Physics -

    a)m=0.6, v=6
    k=1/2*m*v^2
    b)m=0.6, k=25
    k=1/2*m*v^2
    v=sqrt(2*k/m)

    c)w=k_2-k_1

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