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lecture2_tth_2101_S11

# lecture2_tth_2101_S11 - PHYS 2101 Spring 2011 I Vectors A...

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PHYS 2101 I. Vectors A. Vector addition B. Vector subtraction C. Dot products D. Cross products I. Kinematics A. Average velocity B. Average acceleration C. Constant velocity D. Constant acceleration Spring 2011

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m 1 m 2 θ A block of mass m 1 rests on a rough inclined plane and is attached to a hanging mass of mass m 2 by a string which is draped over a frictionless, massless pulley. If the coefficient of kinetic friction between m 1 and the plane is μ k , how long will it take m 2 to fall 1.2 m to the floor? PHYS 2101 Spring 2011
PHYS 2101 EX1: Calculate: A + B | A | = 12 m | B | = 5 m A - B 25 ° 20 ° 20 ° 25 ° + ( - B) Spring 2011

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PHYS 2101 EX2: Add the following vectors: 12 m @ 40º E of S 8 m @ 15º N of W 6 m @ 75º N of E 10 m @ 30º S of W Spring 2011
PHYS 2101 EX3: Calculate: | A | = 12 m | B | = 5 m 25 ° 20 ° r A r B Spring 2011

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PHYS 2101 EX4: Calculate: | A | = 12 m | B | = 5 m 25 ° 20 ° r A × r B Spring 2011
EX5: PHYS 2101 Initially, a dog is 20 m due north of a fire hydrant trotting at a speed of 2 m/s due east. Thirty seconds later, the dog is 15 m due west of the hydrant running at a speed of 5 m/s due south.

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