1. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 1 [Insert Puzzler Here]

2. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 2 ANNOUNCEMENTS

3. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 3 1 of 3 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? 1 2 3 F Fr a

4. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 4 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 1.Zero. 2.One-third of that with which the tractor pulls on the wagon. 3.Equal to that with which the tractor pulls on the wagon. 4.Three times that with which the tractor pulls on the wagon. a

5. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 5 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 1.To the right. 2.Zero. 3.To the left. v

6. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 6 ANNOUNCEMENTS

7. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 7 II5 Exit Homework Problem #1

8. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 8 II5 Exit Homework Problem #2

9. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 9 1 of 3 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? 1 2 3 F Fr a

10. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 10 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 1.Zero. 2.One-third of that with which the tractor pulls on the wagon. 3.Equal to that with which the tractor pulls on the wagon. 4.Three times that with which the tractor pulls on the wagon. a

11. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 11 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 1.To the right. 2.Zero. 3.To the left. v

12. PHYS-1600/2000PHYS-1600/2000 II5 Internal ForcesNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 11 12 14141414 25252525 3333 PROJECTION SCREEN 6666 II5: PLEASE HAND IN TODAY’S ACTIVITIES SHEETS