Motion Calculations Practice: Show your formula and work!
1. Hannah runs 50 meters down the soccer field and then 25 meters back.
What is her distance traveled? What is her displacement?
(No formula needed, but might help to make a sketch)
2. Logan paddles his pink kayak upstream at 2 km/hr. If the stream is flowing at 1 km/hr, what is Logan’s actual velocity with respect to the shoreline?
(No formula needed, but might help to make a sketch)
3. What is the speed of a 2 kg bowling ball that travels 50 meters down an alley in 10 seconds?
4. What is the acceleration of Savannah’s Barbie bike if it takes her 5 seconds to reach a velocity of 20 m/s when she starts from a rest position?
5. Drew is riding his rad skateboard at a velocity of 7 km/hr N when he hits a rock. After 3 seconds, he has slowed down to 4 km/hr N. Calculate his acceleration.
6. Sketch Drew’s motion on a V/T graph.
7. Mrs. Shubert drives her 900 kg Honda Civic at 75 km/hr South right smack into Mr. Bolton’s 2000 kg Dodge Ram Hemi Truck. Mr. Bolton was traveling at 50 km/hr North. Calculate each car’s momentum, proving which teacher will not make it to school tomorrow.
8. Superman flies at 75 m/sec North. How far will he go in 2 hours?
9. In question #8, how many Kilometers would superman fly in 2 hours?
10. Bo and Luke travel at a speed of 90 km/hr across Hazard County. How long will it take them to go 100 km? Bonus: What is the name of their car?
11. Roscoe P. Coltrain sees the Duke cousins fly by at 80 km/hr and so he accelerates his parked patrol car at a rate of 10 km/hr/sec. In 4 seconds he too is moving at a velocity of 80 km/hr. What velocity must Roscoe have started out at?
12. Luke Skywalker drops his light saber down a tunnel that is 27 meters long. If it takes 3 seconds for the light saber to hit the bottom of the tunnel, what is the velocity of the light saber?
13. A space ship is traveling at 20,000 m/sec. At T=5 sec, the rocket thrusters are turned on. At T=55 sec, the space ship reaches a speed of 24,000 m/sec. What is the space ship’s acceleration?
14. A train’s speed is 100 km/hr. How long will it take the train to go 500 km?
15. Willie fires his hunting rifle towards a duck. The 2 kg bullet travels 800 km/hr. What is the bullet’s momentum?
16. While Willie is hunting, Si is taking a nap in the truck. He knocks the gear shift out of park and the 600 kg truck starts to roll 2 km/hr. Who has more momentum? Willie’s bullet or Si’s truck?