# An object with a mass of #7 kg# is on a surface with a kinetic friction coefficient of # 8 #. How much force is necessary to accelerate the object horizontally at # 32 m/s^2#?

##### 2 Answers

Jan 14, 2018

#### Explanation:

As,the object is going on a horizontal surface,frictional force acting on it will be

So,le't's assume we will be requiring a force of F to cause an acceleration of 32 SI units on it.

so,we can write,

so,

Jan 14, 2018

The force is

#### Explanation:

The mass of the object is

The acceleration is

The coefficient of kinetic friction is

The normal force is

The frictional force is

The force necessary to accelerate the object is

The acceleration due to gravity is

According to Newton's Second Law