The work-energy theorem: Show explicitly that the work, Fd, done by a constant force to accelerate an object of mass m from rest to a final velocity v is equal to the kinetic energy of the object.
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The work required to be done by an external force on an object on a frictionless, horizontal surface to accelerate the object form a speed v to a speed 2v is.A) not known without knowledge of the acceleration.B) twice the work required to accelerate the object from v= 0 to v.C) four times the work required to accelerate the object from 0 to v.D) three times the work required to accelerate the object from v= 0 to v.E) equal to the work required to accelerate the object from v= 0 to v.
Is the work required to be done by an external force on an object on a frictionless, horizontal surface accelerated from a speed v to a speed 2v
(a) equal to the work required to accelerate the object from v=0 to v.
(b) twice the work required to accelerate the object from v=0 to v.
(c) Three times the work required to accelerate the object from v=0 to v.
(d) Four times the work required to accelerate the object from 0 to v.
(e) not known without a knowledge of the acceleration.
Is the work required to be done by an external force on an object on a frictionless, horizontal surface to accelerate it from a speed v to a speed 2v
(a) equal to the work required to accelerate the object from v= 0 to v.
(b) twice the work required to accelerate the object from v= 0 to v.
(c) three times the work required to accelerate the object from v= 0 to v.
(d) four times the work required to accelerate the object from v= 0 to v.
