To remove a 10cm long nail from a log, you need to apply a force of 2kN. The nail was pulled

To remove a 10cm long nail from a log, you need to apply a force of 2kN. The nail was pulled out of the log, what kind of work did they do?

Initial data: l (nail length) = 10 cm (0.1 m); F (constant force applied to pull the nail out of the log) = 2 kN (2 * 10 ^ 3 N); the change in the friction force is not taken into account (otherwise, the applied force would decrease from 2 kN (initial force) to 0 N (final force) and the perfect work would be 2 times less).

The work that was done when pulling the nail out of the log is determined by the formula: A = F * S = F * l.

Calculation: A = 2 * 10 ^ 3 * 0.1 = 200 J.

Answer: Work done 200 J.



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