Question

calculate the amount of work don in taking a packet of mass 100 kg to the top of a building of height 14 m . take g = 10 m/s

Answer 1

given that ,
 m = 100kg
height ( h ) = 14m
g = 10 m/s
work done = ?
W = mgh
    = 100 * 14 * 10 
    = 14000 joules

Answer 2

m = 100kg ( mass )
g = 10m/s ( acceleration due to gravity )
h = 14m ( height )
w = mgh
   = 100 * 10 * 14
   = 14000 J
   = 1.4 * 10^4 ( answer )