What is change in gravitational potential energy of ball

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A ball of mass 5.0 kg is lifted off the floor a distance of 1.7m. What is the change in gravitational potential energy of the ball? If the ball is released from rest and falls to the floor, what is the kinetic energy of the ball just before it hits the floor? what is it velocity? What if it was attached to a parachute, is the KE same, larger or smaller and it mechanic energy conserved in this case?

Reference no: EM13654307

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