The well-fed ants of the Fourth North Creek Ant Colony maintain and adhere to a straight trail along the ground between the nearby picnic table and the hole leading to their underground nest. In the colony's folklore, this trail has been known since ancient times as the -axis. One member of the colony, returning to the nest after quenching its thirst with a serious portion of a tasty beverage dripping from the picnic table, is observed first at position i=9.95 m on the trail. Then it is seen staggering back and forth along the trail, eventually stopping for a nap at position f=8.27 m exactly 91.5 s later. Find the ant's average velocity during this time interval.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Askydiver weighing 140 lb (including equipment) falls vertically downward from an altitude of 19,000 ft and opens the parachute after 18 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.55|v| when the parachute is closed and is of magnitude 14|v| when the parachute is open, where the velocity v is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. (a) find the speed of the skydiver when the parachute opens. (b) find the distance fallen before the parachute opens. (c) what is the limiting velocity vl after the parachute opens? (d) determine how long the sky diver is in the air after the parachute opens. (e) plot the graph of velocity versus time from the beginning of the fall until the skydiver reaches the ground.

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?