Question

F=10N power=1Mw tme=1millisec then length of unit is

Answer 1

Answer:

Unit of force = F ⇒ kN = 10^3N

unit of time = t ⇒ ms = 10⁻^3 s

unit of power = P ⇒Kw = 10^3w  

we should find out mass and Length  

Power = energy/time  

Power = Force x distance/time [ energy = work ]  

10^3w = 10^3N x Length/10⁻^3 s

Length = 10⁻^3 m = 1mm  

Force = mass x acceleration  

10^3N = mass x Length/time^2

10^3N = mass x 10⁻^3/(10⁻^3 s)^2

10⁻^3 = mass x 10⁻^3

mass = 1kg  

Hence, mass = 1kg and length = 10⁻^3 m or 1mm

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