Motion 2: Problem Set 2. DIRECTIONS Answer the questions and solve the problems on a separate sheet of paper. Be sure to show all work on the problems.

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Presentation transcript:

Motion 2: Problem Set 2

DIRECTIONS Answer the questions and solve the problems on a separate sheet of paper. Be sure to show all work on the problems which means show the equation used, the filled in equation and give the final answer with the appropriate unit(s).

EQUATIONS AND CONVERSIONS Conversion Factors: Constants: 1 kilogram = 2.2 pounds g earth = 9.8 m/sec grams = 1 kilogram 1 pound = 16 ounces 1 centimeter = inches 100 centimeters = 1 meter 1000 meters = 1 kilometer 1 mile = 5280 feet 1 kilometer = 0.62 miles a = v f - v i F = m∙a p = m∙v w = m∙ g t a =  v s = d v = d t t t

1. What is the weight in Newtons of a 649 pound zebra on the Earth?

2. What is the weight in Newtons of the same 649 pound zebra on Mars? (g Mars = 3.77 m/sec/sec)

3. What is the weight in Newtons of that same 649 pound zebra on Jupiter? (g Jupiter = 26 m/sec/sec)

4. How long will it take the circus frog traveling southwest to Krispy Kreme Doughnuts to travel 1.3 miles when maintaining a constant velocity of 0.92 miles per hour?

5. What is the weight in Newtons of a baseball that flies through the air at 35 m/sec with a momentum of 5.1 kg  m/sec?

6. What is the momentum of a 45.9 g golf ball that is traveling northward at a velocity of 41.2 m/sec?

7. A car travels at a velocity of 7.9 m/sec northward. The car accelerates with a steady acceleration of 2.3 m/sec 2 westward. What is the car’s velocity after 20 seconds?

8. Find the acceleration of a remote controlled motorcycle that goes backwards with a velocity of 5.4 m/sec and ends with a velocity of 2.2 m/sec in 13 seconds.

9. Calculate the momentum of a 2.6 kg puppy running down the hall at 3.2 m/sec.

10. A roller coaster heads up a hill at 11 m/sec. After five seconds, the roller coaster arrives at the bottom of the hill. The speed of the roller coaster is 33 m/sec. What is the acceleration of the roller coaster?

11. During practice, with what force did a basketball player throw a 1.2 kg ball that has an acceleration of 3.2 m/sec 2 ?

12. What is the velocity of a train that travels 2954 kilometers east in 67 hours?