A roller coaster's velocity at the top of the hill is 5 m/s. Five seconds later it reaches the bottom of the hill with a velocity of 30 m/s. What is the acceleration
of the coaster? Remember, change in velocity divided by time is acceleration. *

25 m/s2 (meters per second squared)
5 m/s2 (meters per second squared)
5 m/s (meters per second)
25 m/s (meters per second)

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope