Chapter
V=d/t
2
Problems 1
a = ( Vf – Vi )
t
d = ½ at2
1. Polar bears are extremely good swimmers. If a polar bear is swimming with an
average of 2.6 m/s, how far will it have traveled after 120 seconds?
2. Tree sloths are the slowest moving mammals. On average, their velocity is 0.743
m/s. How long does it take a tree sloth moving at this velocity to travel 22.3 m?
3. The cheetah, the fastest of land animals, can run a distance of 274 m in 8.65
seconds at its top speed. What is the cheetah’s top velocity?
4. The fastest supersonic passenger jet is the Concorde. How long would it take the
Concorde to travel the 6265 km between New York City and London, England,
assuming that the jet travels at its maximum speed of 2,150 km/h during the entire
trip? Please express your answer in minutes.
5. The fastest crossing of the Atlantic Ocean by an ocean liner was made on July 7,
1952. The ship, the S.S. United States, traveled 4727 km east in 3.4 days or 82.6
hours. What was the average velocity of the ship?
6. If a cross country runner covers a distance of 347 meters in 134 seconds what is
her speed?
7. What is the speed (in mph) of a baseball that travels 49 meters in 2.4 seconds?
8. After an impact involving a non-functioning satellite, a paint chip leaves the
surface of the satellite at a speed of 96 m/s. After 17 seconds, how far has the chip
landed?
Chapter
2
Problems 1
9. The space shuttle Endeavor is launched to altitude of 500 km above the surface of
the earth. The shuttle travels at an average rate of 700 m/s. How long will it take
for Endeavor to reach its orbit?
10. How far (in km) will you travel in 3 minutes running at a rate of 6 m/s?
11. In 0.5 seconds, a projectile goes from 0 to 300 m/s. What is the acceleration of
the projectile?
12. A meteoroid changed velocity from 1.0 km/s to 1.8 km/s in 0.03 seconds. What
is the acceleration of the meteoroid?
13. The space shuttle releases a space telescope into orbit around the earth. The
telescope goes from being stationary to traveling at a speed of 1700 m/s in 25
seconds. What is the acceleration of the satellite?
14. A dragster in a race accelerated from stop to 60 m/s by the time it reached the
finish line. The dragster moved in a straight line and traveled from the starting line
to the finish line in 8.0 sec. What was the acceleration of the dragster?
15. An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts
off the ground. Determine the distance traveled before takeoff.
16. A feather is dropped on the moon from a height of 1.40 meters. The acceleration
of gravity on the moon is 1.67 m/s2. Determine the time for the feather to fall to the
surface of the moon.
Chapter
2
Problems 1
17. A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a
distance of 110 m. Determine the acceleration of the car.
18. A baseball is popped straight up into the air and has a hang-time of 6.25 s.
Determine the height to which the ball rises before it reaches its peak.
19. A Jaguar left skid marks that were 290 m in length. Assuming that the
automobile skidded to a stop with a constant acceleration of -3.90 m/s2, determine
the speed of the Jaguar before it began to skid.
20. Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6
seconds, what will be his final velocity and how far will he fall?