A car drives along the straight level frictionless road
Asked by admin @ in Physics viewed by 307 People
a car drives along the straight level frictionless road by an engine delivering constant power. how is velocity of car related to time elapsed?
Answered by admin @
Power is given by f.v
where f is force and v is velocity of particle
power =k
mav=k
m(dv/dt)v=k
mdv x v= kdt
integrating both sides
mv^2=kt
v is directly proportional to√t
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