How much work does it take to lift a #30 kg # weight #3/2 m #?

1 Answer
Jan 29, 2016

Answer:

#"Work" = F*d#, where #F# is the force required to lift it, and #d# is how high it is lifted.

Explanation:

The force required to lift an object is its weight (the force of gravity)

Weight: #F_g=mg#

I will use 10 for g, you may be using 9.8 or 9.81 in your class.

#F_g=30 kg *10N/(kg)=300N#

#W=Fd#
#W=300N*3/2m#
#W=450J#