1.

when a force of 50n is applied to the free end of an elastic cord, an extension of 4cm is produced in the cord. calculate the workdone on the cord

Answer»

ANSWER:

FORCE= F= 50N

Extension= e= 4cm= 0.04m

Workdone= ½Fe

= ½(50)(0.04)

=50×0.02

= 50×2/100

= 2/2

= 1



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