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If a 70 kg baseball player steals home by sliding into the
Chapter , Problem 96(choose chapter or problem)
If a 70 kg baseball player steals home by sliding into the plate with an initial speed of 10 m/s just as he hits the ground, (a) what is the decrease in the players kinetic energy and (b) what is the increase in the thermal energy of his body and the ground along which he slides?
Questions & Answers
QUESTION:
If a 70 kg baseball player steals home by sliding into the plate with an initial speed of 10 m/s just as he hits the ground, (a) what is the decrease in the players kinetic energy and (b) what is the increase in the thermal energy of his body and the ground along which he slides?
ANSWER:Step 1 of 2 a) The change in kinetic energy is given by, The initial velocity is given, The mass of the baseball player is, So, The change in kinetic energy is , here the negative sign represents the direction in kinetic energy.