The speed v reached by a car of mass m driven with constant power P is given by
(A) v = 3xP/m
(B) v = [3xP/m]^1/2
(C) v = [3xP/m]^1/3
(D) v = [3xP/m]^2
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Dear Student,
P=FvP=(mdvdt)vor, vdvdt=Pmor, vdvdx.dxdt=Pmor, v2dvdx=Pm ................ [because dxdt=v]or, v2dv=PmdxIntegrate both side, we get,v33=Pxmv=(3Pxm)13/
P=FvP=(mdvdt)vor, vdvdt=Pmor, vdvdx.dxdt=Pmor, v2dvdx=Pm ................ [because dxdt=v]or, v2dv=PmdxIntegrate both side, we get,v33=Pxmv=(3Pxm)13/
Yash8919:
Sir sorry but I can't understand your given answer can you elaborate it properly and send it again. Thank you.
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