1. a) Define momentum. b) State the SI unit of momentum.

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Chapter1: Units, Trigonometry. And Vectors
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momentum vectors.
6 m.s-1
4 m.s
Fig 1.8: The velocity of the ball changes during a c
Exercise 1.1
1. a) Define momentum.
SF CStadard Futonatual
b) State the SI unit of momentum.
2. Explain, in your own words, the difference between momentum and inertia.
3.
Provide three examples of situations in which:
a) velocity is the main factor determining an object's momentum
b) mass is the main factor determining an object's momentum.
4. What is the momentum of a 6 kg bowling ball travelling at 2,2 m.s east?
5. The momentum of a 75 g bullet is 9 kg.m.s1 toward a target. What is the bullet's
velocity?
A 10 kg bicycle and a 54 kg rider both have a velocity of 4,2 m.s east. Draw
momentum vectors for:
6.
a) the bicycle
b) the rider
c) the bicycle-rider system.
7. At what velocity does a 0,046 kg golf ball leave the tee if the club has given the
ball a momentum of 3,45 kg.m.s-l south?
8.
The blue whale is the largest mammal on the Earth. A female blue whale swims
at a velocity of 57 km.h west and has a momentum of 2,15 x 10 kg.m.s. What
is the whale's mass?
A 38 000 kg loaded transport truck is travelling at 1,2 m.s west. What does the
velocity of a 1 400 kg car need to be for the car to have the same momentum as
the truck?
9.
10. Which of the following objects will experience the greater change in momentum:
a) a 14 000 kg bull-dozer decreases its speed by 1 m.s or,
b) a 10 g rifle bullet, travelling at 1 500 m.s-, becomes embedded in the truck
of a tree?
18
• Topic 1: Momentum and impulse
All Quyc tuis
Transcribed Image Text:momentum vectors. 6 m.s-1 4 m.s Fig 1.8: The velocity of the ball changes during a c Exercise 1.1 1. a) Define momentum. SF CStadard Futonatual b) State the SI unit of momentum. 2. Explain, in your own words, the difference between momentum and inertia. 3. Provide three examples of situations in which: a) velocity is the main factor determining an object's momentum b) mass is the main factor determining an object's momentum. 4. What is the momentum of a 6 kg bowling ball travelling at 2,2 m.s east? 5. The momentum of a 75 g bullet is 9 kg.m.s1 toward a target. What is the bullet's velocity? A 10 kg bicycle and a 54 kg rider both have a velocity of 4,2 m.s east. Draw momentum vectors for: 6. a) the bicycle b) the rider c) the bicycle-rider system. 7. At what velocity does a 0,046 kg golf ball leave the tee if the club has given the ball a momentum of 3,45 kg.m.s-l south? 8. The blue whale is the largest mammal on the Earth. A female blue whale swims at a velocity of 57 km.h west and has a momentum of 2,15 x 10 kg.m.s. What is the whale's mass? A 38 000 kg loaded transport truck is travelling at 1,2 m.s west. What does the velocity of a 1 400 kg car need to be for the car to have the same momentum as the truck? 9. 10. Which of the following objects will experience the greater change in momentum: a) a 14 000 kg bull-dozer decreases its speed by 1 m.s or, b) a 10 g rifle bullet, travelling at 1 500 m.s-, becomes embedded in the truck of a tree? 18 • Topic 1: Momentum and impulse All Quyc tuis
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