Physics, 18.10.2019 22:10 tburlew01

1(ke, pe) an object of mass 90 lbm is projected straight upward from the surface of the earth and reaches a height of 900 ft when its velocity reaches zero. the only force acting on the object is the force of gravity. the acceleraton of gravity is g = 32.2 ft/s2 . determine the initial kinetic energy of the object [ft·lbf], and the object’s initial velocity [ft/s].

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1(ke, pe) an object of mass 90 lbm is projected straight upward from the surface of the earth and re...