A plane with power "P" can go from rest to velocity "v" in time "T". How much power is required to go from rest to 2v in the same time? Show work. A)P/2 B)4P C)6P D)2P

Explanation:

Power = Energy / Time

When the velocity doubles the kinetic energy increases by a factor of 4.

So if the time is constant and the velocity doubles, then the power will increase to a factor of 4.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

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