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Discussion05

# Discussion05 - of the body is given by where m is the...

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Newton’s Laws General Physics I Mechanics Racquetball Striking a Wall Physics 140 Mt. Etna Stewart Hall

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Newton’s Laws If the vector sum of all forces acting on a body is zero (i.e. the total force acting on the body is zero ), then the body experiences no acceleration and moves with constant velocity in a straight line (or stays at rest) If the vector sum of all forces acting on a body is not zero (i.e. the total force acting on the body is not zero), then the velocity of the body is changing (in magnitude or direction) and the acceleration

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Unformatted text preview: of the body is given by where m is the body’s mass ∑ = = F m F m a total r r r 1 1 Question 4.40 Question 4.14 Problem 4.20 (a) A. 1.8 m/s 2 B. 3.8 m/s 2 C. 5.8 m/s 2 D. 7.8 m/s 2 E. 9.8 m/s 2 Problem 4.20 (a) A. 1.8 m/s 2 B. 3.8 m/s 2 C. 5.8 m/s 2 D. 7.8 m/s 2 E. 9.8 m/s 2 Problem 4.29 Problem 4.30 (b) A. 424 N B. 600 N C. 848 N D. 1200 N E. 1700 N Problem 4.30 (b) A. 424 N B. 600 N C. 848 N D. 1200 N E. 1700 N Problem 4.33 A. 1 s B. 2 s C. 3 s D. 4 s E. 5 s Problem 4.33 A. 1 s B. 2 s C. 3 s D. 4 s E. 5 s...
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Discussion05 - of the body is given by where m is the...

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