Question

How much power is needed to accelerate an object with a mass of `6` `kg` and a velocity of `3` `ms^-1` at a rate of `1` `ms^-2`?

Answer 1

The power is `=18W`

Explanation:

The mass is `m=6kg`

THe acceleration is `a=1ms^-2`

According to Newton's Second Law

`F=ma=6*1=6N`

The velocity is `=3ms^-1`

The power is

`P=Fv=6*3=18W`