When running and jumping to score, a basketball player seems to "hang" in the air because
a. his or her acceleration is zero.
b. his or her horizontal velocity is quite small.
c. both components of motion are zero.
d. his or her vertical velocity is quite small.
e. levitation is possible with practice.
d
You might also like to view...
The mass number of an atom is equal to the number of what particles in the nucleus?
A) protons B) neutrons C) nucleons D) electrons E) positrons.
Which of the following is an example of a star?
A) Venus B) Pluto C) The Sun D) The Moon
A mass is accelerated when ______________ acts upon the mass
a. a balanced force b. any force c. no force d. an unbalanced force e. none of these
Astronomers think the Milky Way has spiral arms because
A. globular clusters outline spiral arms. B. X-ray maps show that dust clouds are distributed in the disk with a spiral pattern. C. they can see them unwinding along the celestial equator. D. young star clusters, HII regions, and associations outline spiral arms. E. All of these choices are correct.