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A constant power P is applied to a car s...

A constant power P is applied to a car starting from rest. If v is the velocity of the car at time t, then:

A

`vprop t`

B

`v prop (1)/(t)`

C

`v prop sqrt(t)`

D

`v prop (1)/sqrt(t)`

Text Solution

Verified by Experts

[3]
Power, `P=mxxaxxv`
`P=mxx(v^(2))/(t)`
If p is constant, then for a given body `v^(2)propt`
or `vprop sqrt(t)`
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