A ball drops some distance and loses 30 J of gravitational potential energy.Do NOT ignore air resistance.How much kinetic energy did the ball gain?
A) more than 30 J
B) exactly 30 J
C) less than 30 J

Question

Quizplus · Accepted Answer

Due to air resistance, some of the gravitational potential energy is converted into other forms of energy, such as thermal energy and sound energy, rather than into kinetic energy. Therefore, the amount of kinetic energy gained by the ball will be less than the amount of gravitational potential energy lost.

A Ball Drops Some Distance and Loses 30 J of Gravitational