Abullet is dropped into a river from a very high bridge. at the same time, another bullet is fired from a gun straight down towards the water. if air resistance is negligible, the acceleration of the bullets just before they strike the water:
(a) is greater for the dropped bullet
(b) is greater for the fired bullet
(c) is the same for both bullets
(d) depends on how high they started

The cheetah is considered the fastest running animal in the world. cheetahs can accelerate to a speed of 20.1 m/s in 2.50 s and can continue to accelerate to reach a top speed of 28.1 m/s. assume the acceleration is constant until the top speed is reached and is zero thereafter.1) starting from a crouched position, how long does it take a cheetah to reach its top speed? (express your answer to three significant figures.) s2) how far does it travel in that time? (express your answer to three significant figures.) m3) if a cheetah sees a rabbit 120 m away, how long will it take to reach the rabbit, assuming the rabbit does not move? (express your answer to three significant figures.)