A 20 kg object falls from a height of 30 meters. How many joules of kinetic energy will the object have just before it hits the ground?

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Answer 1 · 2016-10-04T07:33:29

#E_k=5886" Joules"#

#E_p:"Potential energy"#
#m:"Mass of object"#
#h:"height"#
#g:9.81 N7(kg)#

#"An object at a height of 30 meters has potential energy."#

#E_p=m*g*h#

#E_p=20*9.81*30#

#E_p=5886 " Joules"#

#"The Potential energy changes to the kinetic energy if object falls."#

#E_k="Kinetic energy"#

#E_k=5886" Joules"#