How much work would it take to push a # 8 kg # weight up a # 9 m # plane that is at an incline of # pi / 3 #?

1 Answer
ali ergin
Feb 15, 2016

#E_p=611,67 J#

Explanation:

#"height of object from ground"#
#h=9*sin( cancel(pi)/3*180/cancel(pi))#
#h=9*sin 60=9.0,866=7,794 m#
#"An object will gain Potential Energy if it raises from ground"#
#E_p=m*g*h#
#E_p=8*9,81*7,794#
#E_p=611,67 J#

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