Acceleration can be best described as:
The ability of an object to stay still.
The ability of an object to speed up.
The ability of an object to stop.
The ability of an object to slow down.

The ability to speed up

Explanation:

Speed up since the motion is rising , thats acceleration

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.