A student observes two birds fly past with the same speeds. She concludes that they have the same kinetic energy. What is wrong with her conclusion? A.
The birds might be at different heights.
B.
The birds might be flying in different directions.
C.
The birds might have different masses.
D.
The birds might have different chemical potential energies.

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.