Question

According to the work-energy theorem, the amount of work done can be determined using which formula?

Answer 1

W = KE = 1/2m(v2f-v2i) also known as D just took the test

Answer 2

`W=K_f -K_i = (1)/(2)mv_f^2 -(1)/(2)mv_i^2`

Step-by-step explanation:

The work-energy theorem states that the amount of work done is equal to the variation of kinetic energy of the object, therefore:

`W=K_f -K_i = (1)/(2)mv_f^2 -(1)/(2)mv_i^2`

Where:

m is the mass of the object

`v_i` is the initial velocity of the object

`v_f` is the final velocity of the object