If you want to lift a 5-kg box to a height of 2 meters, how much work must be done?

1 Answer
ali ergin
May 25, 2017

#"Work" rArr" "W=98.1J#

Explanation:

#"It is assumed that the potential energy of objects located at"# #"ground level is zero."#
#"If the object is higher than the ground level, it gains potential energy".#
#"We can calculate the potential energy of objects above ground"# #"level using the equation given below."#

#E_p=m g h#
#"Where m:mass of object , h:height from ground level"#
#E_p=5*9.81*2#
#E_p=98.1J#

#"A change in potential energy means that there is work done."#

#"Work=change in potential energy"#
#"Work" rArr" "W=98.1J#

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