1.Two teams of nine members each engage in a tug of war. Each of the first team's membershas an average mass of 66 kg and exerts an average force of 1356 N horizontally. Each of thesecond team's members has an average mass of 72 kg and exerts an average force of 1366 Nhorizontally....hhhh...oooooooooooooooooohi....m₁...a =Enter to 2 significant figuresF₂Consider: It will be helpful to define a system first. The system can be members of both teamsand the rope. When members push against the ground, the ground pushes back on them inthe opposite direction. For example, when a member from team 1 pulls the rope towards theleft, their feet pushes the ground to the right. The ground pushes back with the same forcetowards the left.ܕܐFor the system made of members of both teams and the rope, what are the external forces.Draw a free body diagram on a scratch paper to illustrate.✔m/s²F(a) What is the acceleration of the two teams? Give this as a positive value.1₂Enter to 2 significant figuresT=✔N(b) What is the tension in the section of rope between the teams? Help: For this part, it may beuseful to define the system to be one team and the rope. Identify the external forces on thesystem. 1.f?f= 7.5 Na =?0 =Enter to 2 significant figures✔m/s²Free-body diagramF₁F₁F₂degreesF₁ = 10 NTwo children pull a third child on a snow saucer sled exerting forces F₁ and F₂ as shownabove in the figure. Find the acceleration a and direction of the 52-kg sled and child system.Note that the direction of the frictional force f is unspecified; it will be in the opposite directionof the sum of F₁ and F₂.Think and Prepare45°1. Friction acts opposite the intended motion of snow saucer.2. Given F₁ and F2, what direction will the saucer move if initially at rest? In the direction of F₁? In the direction of F₂? Or in the direction of the resultant of F₁ and F₂?30°3. In what direction will friction act? Opposite F₁? Opposite F₂? Or opposite the resultant of F₁and F₂?F₂ = 8 N

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1. Two teams of nine members each engage in a tug of war. Each of the first team's members has an average mass of 66 kg and exerts an average force of 1356 N horizontally. Each of the second team's members has an average mass of 72 kg and exerts an average force of 1366 N horizontally. f... m₁ a = Enter to 2 significant figures ܕܐ ܕܐ ܐ ܐ... Consider: It will be helpful to define a system first. The system can be members of both teams and the rope. When members push against the ground, the ground pushes back on them in the opposite direction. For example, when a member from team 1 pulls the rope towards the left, their feet pushes the ground to the right. The ground pushes back with the same force towards the left. m/s² m₁ m₂ For the system made of members of both teams and the rope, what are the external forces. Draw a free body diagram on a scratch paper to illustrate. m₂ m₂ (a) What is the acceleration of the two teams? Give this as a positive value. Enter to 2 significant figures T= F N 12 (b) What is the tension in the section of rope between the teams? Help: For this part, it may be useful to define the system to be one team and the rope. Identify the external forces on the system.

1. Two teams of nine members each engage in a tug of war. Each of the first team's members has an average mass of 66 kg and exerts an average force of 1356 N horizontally. Each of the second team's members has an average mass of 72 kg and exerts an average force of 1366 N horizontally. f... m₁ a = Enter to 2 significant figures ܕܐ ܕܐ ܐ ܐ... Consider: It will be helpful to define a system first. The system can be members of both teams and the rope. When members push against the ground, the ground pushes back on them in the opposite direction. For example, when a member from team 1 pulls the rope towards the left, their feet pushes the ground to the right. The ground pushes back with the same force towards the left. m/s² m₁ m₂ For the system made of members of both teams and the rope, what are the external forces. Draw a free body diagram on a scratch paper to illustrate. m₂ m₂ (a) What is the acceleration of the two teams? Give this as a positive value. Enter to 2 significant figures T= F N 12 (b) What is the tension in the section of rope between the teams? Help: For this part, it may be useful to define the system to be one team and the rope. Identify the external forces on the system.

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Chapter1: Units, Trigonometry. And Vectors

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

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Question

1.
Two teams of nine members each engage in a tug of war. Each of the first team's members
has an average mass of 66 kg and exerts an average force of 1356 N horizontally. Each of the
second team's members has an average mass of 72 kg and exerts an average force of 1366 N
horizontally.
...hhhh...
oooooooooooooooooo
hi....
m₁...
a =
Enter to 2 significant figures
F₂
Consider: It will be helpful to define a system first. The system can be members of both teams
and the rope. When members push against the ground, the ground pushes back on them in
the opposite direction. For example, when a member from team 1 pulls the rope towards the
left, their feet pushes the ground to the right. The ground pushes back with the same force
towards the left.
ܕܐ
For the system made of members of both teams and the rope, what are the external forces.
Draw a free body diagram on a scratch paper to illustrate.
✔m/s²
F
(a) What is the acceleration of the two teams? Give this as a positive value.
1₂
Enter to 2 significant figures
T=
✔N
(b) What is the tension in the section of rope between the teams? Help: For this part, it may be
useful to define the system to be one team and the rope. Identify the external forces on the
system.

1.
f
?
f= 7.5 N
a =
?
0 =
Enter to 2 significant figures
✔m/s²
Free-body diagram
F₁
F₁
F₂
degrees
F₁ = 10 N
Two children pull a third child on a snow saucer sled exerting forces F₁ and F₂ as shown
above in the figure. Find the acceleration a and direction of the 52-kg sled and child system.
Note that the direction of the frictional force f is unspecified; it will be in the opposite direction
of the sum of F₁ and F₂.
Think and Prepare
45°
1. Friction acts opposite the intended motion of snow saucer.
2. Given F₁ and F2, what direction will the saucer move if initially at rest? In the direction of F₁
? In the direction of F₂? Or in the direction of the resultant of F₁ and F₂?
30°
3. In what direction will friction act? Opposite F₁? Opposite F₂? Or opposite the resultant of F₁
and F₂?
F₂ = 8 N

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