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# [Insert Puzzler Here] - PowerPoint PPT Presentation

[Insert Puzzler Here]. ANNOUNCEMENTS. 1 of 3. a. A farm tractor is accelerating over level ground. The force of friction acting upon the tractor due to the ground is best represented by which vector?. 3. 2. 1. F Fr. F Fr. F Fr. 3. 2 of 3.

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Presentation Transcript

1 of 3

a

A farm tractor is accelerating over level ground. The force of friction acting upon the tractor due to the ground is best represented by which vector?

3

2

1

FFr

FFr

FFr

3

2 of 3

• A farm tractor is pulling a wagon. The tractor is three times heavier than the wagon. The tractor starts from rest and accelerates for a short while. The magnitude of the force with which the wagon pulls on the tractor is
• Zero.
• One-third of that with which the tractor pulls on the wagon.
• Equal to that with which the tractor pulls on the wagon.
• Three times that with which the tractor pulls on the wagon.

a

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3 of 3

• A farm tractor is pulling a wagon. The tractor is moving with uniform speed over the level earth. The net force acting upon the wagon is
• To the right.
• Zero.
• To the left.

v

5

1 of 3

a

A farm tractor is accelerating over level ground. The force of friction acting upon the tractor due to the ground is best represented by which vector?

3

2

1

FFr

FFr

FFr

9

2 of 3

• A farm tractor is pulling a wagon. The tractor is three times heavier than the wagon. The tractor starts from rest and accelerates for a short while. The magnitude of the force with which the wagon pulls on the tractor is
• Zero.
• One-third of that with which the tractor pulls on the wagon.
• Equal to that with which the tractor pulls on the wagon.
• Three times that with which the tractor pulls on the wagon.

a

10

3 of 3

• A farm tractor is pulling a wagon. The tractor is moving with uniform speed over the level earth. The net force acting upon the wagon is
• To the right.
• Zero.
• To the left.

v

11

PROJECTION SCREEN

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II5: PLEASE HAND IN TODAY’S ACTIVITIES SHEETS

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