A force of 10 N acts on a body of mass 1 kg at rest.The work done by t – InterviewSolution

1.	A force of 10 N acts on a body of mass 1 kg at rest.The work done by the body in 4 seconds is.a)80Jb) 800 Jc) 8
Answer» Force = mass× accelerationF =10 Nmass = 1 kga = F/m = 10/1=10 m/s²i)now, u = 0t = 4 secu=0S=ut+1/2at^2=0+1/21016=80mhence W=F.s=10.80=800J

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