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Grade 11Mechanics

a constant power p is applied on a body of mass m by a vairiable force in same direction of displacement find relation
1=Velocity respect to time?
2=Displacement with respect to time?

Profile image of Kanha
6 Years agoGrade 11
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1 Answer

Profile image of Vikas TU
ApprovedApproved Tutor Answer6 Years ago
Work is the result of a force on a point that follows a curve X, with a velocity v, at each instant. The small amount of work δW that occurs over an instant of time dt is calculated as
dw = F.ds = F.vdt 
W = integral (t1 to t2) F.vdt = integral (t1 to t2) F.ds/dt *dt = integral (F.ds)
F.v is the power over the instant dt . The sum of te
hese small amount of work over the trajectory of point yield the work