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Suppose that you drop a 10 Kg object from a table and gains a kineticenergy of 100 J right before it hits that ground. How high was the table?Use g = 10 m/s2

Respuesta :

KE when it hits the ground = PE before it's dropped

PE = mgh

KE = mv^2/2 = 100J

100 J = mgh

100 = 10*10*h

h = 100/100

h = 1 m

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