A worker drives a 0.500 kg spike into a rail tie with a 2.50 kg sledgeham-
mer. The hammer hits the spike with a speed of 65.0 m/s. If one-third of
the hammer's kinetic energy is converted to the internal energy of the
hammer and spike, how much does the total internal energy increase?

The increase in internal energy will be 1760.42 J.

Given information:

The mass of the sledgehammer is kg.

The velocity of the sledgehammer is m/s.

So, the kinetic energy of the sledgehammer will be calculated as,

Now, one-third of the hammer's kinetic energy is converted to the internal energy of the  hammer and spike.

So, the increase in internal energy will be calculated as,

Therefore, the increase in internal energy will be 1760.42 J.

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