1. Answers may vary, but are likely to reflect the idea that changing the shapes of one or both pieces of paper will cause the amount of air resistance affecting the sheets of paper to differ.
A 10 kg 25 m/s 250 kg x m/s
B 12 kg 25 m/s 300 kg x m/s
C 25 kg 12 m/s 300 kg x m/s
D 20 kg 25 m/s 500 kg x m/s
c. They have the same momentum.
d. Object B has a greater mass than object A.
e. Object D has a greater velocity than object C.
4. The ball loses momentum.
5. The pins gain momentum equal to that lost by the ball.
1. f = 48N
2. a = 12 m/s squared
3. m = 200kg
4. The amount of air resistance is greater on the larger, flatter object. Since gravity accelerates all samples of matter at the same rate, the air resistance is what slows the larger object's fall. The great amount of air resistance on the larger object pushes up on the object as gravity pulls it down.
5. A multistage rocket system lifts the satellite to the orbiting height and then accelerates it to the speed required to keep it in orbit.