Question #c40ec

1 Answer
Oliver S.
Feb 25, 2018

A, approximatley 446.9 joules

Explanation:

Using the potential energy formula:
#E_P=mgDeltah#
#m# is the mass of the object in kg
#g# is the acceleration of free fall, 9.81 #ms^2#
#Deltah# is the height the object was raised by.

Hence:
#(3.8 times 9.81 times 12) approx 447 J#

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