Answers

2016-03-09T15:32:25+05:30
Here the work done, is in the form of kinetic energy (K.E.)
  K.E.= 1/2 mv^2
given,
mass= 60kg
speed= 60m/s
there fore,
   K.E.= 1/2x 60x (60)^2
          =108000 J
Ans is 108000J
0
2016-03-09T17:08:06+05:30
mass = 60 kg
velocity = 60 m/s
work done = K.E = 1/2*m*v*v
= 1/2*60*60*60
= 10800 J
= 1.08 *10⁵ J

i hope it helps..........
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