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A 43 N toy is placed in a light swing that is attached to ropes 1.7 m long.

(a) Find the gravitational potential energy associated with the toy relative to its lowest position when the ropes are horizontal.
J
(b) Find the gravitational potential energy associated with the toy relative to its lowest position when the ropes make a 30° angle with the vertical.
J

  • physics -

    A) PE of gravity= m*g*h
    m=mass of object
    g=acceleration due to gravity
    h= distance
    mass= weight/gravity=4.383
    PE=(4.383kg)(9.81 m/s^2)(1.7m)
    PE=73.095 J

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