# How much work would it take to horizontally accelerate an object with a mass of 8 kg to 3 m/s on a surface with a kinetic friction coefficient of 6 ?

Dec 17, 2017

The work is $= 36 J$

#### Explanation:

The mass of the object is $m = 8 k g$

The velocity of the object is $v = 3 m {s}^{-} 1$

The kinetic energy of the object is

$E = \frac{1}{2} m {v}^{2} = \frac{1}{2} \cdot 8 \cdot {3}^{2} = 36 J$

The work done is equal to the kinetic energy

Therefore,

The work is $= 36 J$