A block with a mass of 34.0 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough surface a distance of 6.95 m. (a) What is the work done (in J) by the 150 N force

Complete Question

A block with a mass of 34.0 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough surface a distance of 6.95 m.

(a) What is the work done (in J) by the 150 N force

b) find the coefficient of kinetic friction between the crate and rough surface

a

b

Explanation:

From the question we are told that

   The mass of the block is  

   The horizontal force is

   The  distance moved is

Generally the work done is mathematically represented as

=>    

=>    

Generally the net force acting on the block is  

=>   Here  

Here a is the acceleration and the value is  zero because velocity is constant

 So  

So

d) physical means can be used to separate the components of air.