Q 1230745612.     A car's engine can deliver `90kW` of power. The car's mass is `1000 kg`. Assume the total resistive force is proportional to the velocity: `F_text(frictionl) = propv`. The drag coefficient `prop` is a `prop` = `1000N s//m`. Find the maximum
Determine the maximum kinetic energy that the trapped particle has in its motion . express on answer in terms a and b. At what value of x will the kinetic energy maximum ?


A

`X = sqrt(a) `

B

`X = sqrt(b/a) `

C

`X = sqrt(b) `

D

None of these

HINT

` F = -(dU(x))/(dx`

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