To learn about the Work-Energy Theorem and its basic applications. In this problem, you will learn about the relationship between the work done on an object and the kinetic energy of that object. The kinetic energy KKK of an object of mass mmm moving at a speed vvv is defined as K

Work done is equal to the change in its kinetic energy.

Explanation:

The work energy theorem gives the relationship between work and the kinetic energy of the object. It is given by :

m is the mass of object

u is the initial speed

v is the final speed

If work done is : W = F × d

So, the work energy theorem will be :

Hence, this is the required solution.

b. a lightning bug, plug of grass, and a worm

friction

explanation:

they us to move forward and backwards