Question

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

W = AKE = 2m(v; - V)
WE AKE = {mv-v)
W = AKE = 2m1v; -
WE AKE = mv;-)

Answer 1

D on edge 2020

Step-by-step explanation:

Answer 2

`W=\Delta KE= KE_f-KE_i=(1)/(2) \,m \,v_f^2-(1)/(2) \,m \,v_i^2`

Step-by-step explanation:

The Work-Kinetic Energy Theorem states that the work done on a particle of mass "m", equals the particle's change in Kinetic Energy (final Kinetic Energy of the particle "
`KE_f`" minus the initial Kinetic energy of the particle "
`KE_i`"), and it is expressed as:

`W=\Delta KE= KE_f-KE_i=(1)/(2) \,m \,v_f^2-(1)/(2) \,m \,v_i^2`

where we have used the explicit form of the KE of a particle of mass m and velocity
`v`. Of course,
`v_f` stands for the final velocity of the particle, and
`v_i` for the particle's initial velocity.