The discussion focuses on calculating the work done on an experimental train with a mass of 22,500 kg, powered by a jet engine producing a thrust of 4.63 × 105 N over a distance of 533 m. The correct approach to find the work is to use the formula for work, which is the product of force and displacement. Participants clarified that dividing force by mass yields acceleration, not work, and emphasized the importance of understanding the definition of work in physics.
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Dividing the force by the mass gives you the acceleration, not the work.xlogit3k said:
)collinsmark said:Dividing the force by the mass gives you the acceleration, not the work.
Knowing the acceleration, you could use kinematics to find the final velocity and then calculate kinetic energy. But there is a much easier way.
What is the very definition of work? (Hint: it's a function of force and displacement.
That's right (well, technically the dot product of force and displacement). And the both force and displacement are given in the problem statement.xlogit3k said: