Work, Power and EnergyHard
Question
A mass of 1kg is hanging from a spring of spring constant 1N/m. If Saroj pils the mass down by 2m. The work done by Saroj is
Options
A.1 J
B.2 J
C.3 J
D.4 J
Solution
Work done = 
F.dx = kxdx = 
kx2
=
.1.(4 - 0) = 2J
F.dx = kxdx = kx2=
.1.(4 - 0) = 2JCreate a free account to view solution
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