Question

What is the work done when force applied is 50 N and displacement is 13 m?
what is the si unit of work?

Answer 1

Force,F = 50 N
displacement, s=13 m
Work done ,
W = Fs
W=50×13=650 Nm (or) 650 J


The S.I unit of work is Joule(J).





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Answer 2

to understand the way we view work and define work from the point of view of science. let us consider a situation:
puch a pepple lying on a surface. the pebble moves through a distance .you exerted a force on the pebble and the pebble got displaced. in this situation work is done .we define work to be equal to the product of the force and displacement.
work done =force ×DISPLACE MENT
SO, work done=50n and displacement =13m therefore 50×13=650jouls
the SI unit of work is jouls .
thanks