1. Momentum and Impulse 6-1

3. Liner Momentum Examine how force and the duration of the collision between objects affect their momentum.

4. Momentum describes an object’s motion SI units are the Kgms -1 Vector or scalar?

5. The bowling ball and the dodge ball. –Moving at the same velocity, which has more momentum?

6. Attempt Practice 6A, p. 209 Answers: 1.2.5 x 10 3 Kgms -1 to the right 2. a. 1.2 x 10 2 Kgms -1 to the NW b. 94 Kgms -1 to the NW c. 27 Kgms -1 to the NW 3.46 ms -1

7. A change in momentum takes force and time

8. Stopping the dump truck and the toy truck moving down the same hill. From these examples we see that momentum (p) is closely related to force (F).

9. A change in momentum takes force and time In simple terms: 1.Small force over long time can produce the same change in momentum as a big force over a _______ time. Follow-through in sports?

10. Attempt Practice 6B, p. 211 Answers: 1.3.8 x 10 2 N to the right 2.1.1 x 10 3 N upward 3.16.0 kgms -1 to the south 4.a. 9.0 ms -1 to the right b. 15 ms -1 to the left

11. Stopping time and distance depends on the impulse-momentum theorem If truck has twice the mass. And, the brakes are assumed to apply the same force. What affect does this have on stopping time and stopping distance?

12.  Empty TruckTruck w/ Load (2m)

13. Attempt Practice 6C, p. 213 Answers: 1.5.33 s; 53.3 m to the west 2. a. 14 m/s to the north b. 42 m to the north c. 8.0 s 3. a. 1.22 x 10 4 N to the east b. 53.3 m to the west

14. A change in momentum over a longer time requires less force