A net force acts on an object and accelerates it from rest to a speed v 1 In doing so, the force does an amount of work W 1 By what factor must the work done on the object be increased to produce three times the final speed, with the object again starting from rest ...

W tot K final since K initial 0 Thus ...

A net force acts on an object and accelerates it from rest to a speed v 1

Question:

A net force acts on an object and accelerates it from rest to a speed v₁. In doing so, the force does an amount of work W₁. By what factor must the work done on the object be increased to produce three times the final speed, with the object again starting from rest?

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