WebAssign-01-SOLN

# WebAssign-01-SOLN - PH117-HMWK-1.8 While driving in an...

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PH117-HMWK-1.8: While driving in an exotic foreign land you see a speed limit sign on a highway that reads 180,000 furlongs per fortnight. How many miles per hour is this? (One furlong is 1/8 mile, and a fortnight is 14 days. A furlong originally referred to the length of a plowed furrow.) V = 180,000 furlongs fortnight mile 1 furlong 1 fortnight 14 d ays 1 d ay 24 h ours = 67 mph

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PH117-HMWK-1.35: Compute the x and y-components of the vectors A , B , and C in Fig. 1.28. Figure 1.27 A x ˆ x = 12.0 m*sin(37.0 ) ˆ x = 7.2 m ˆ x A y ˆ y = 12.0 m*cos(37.0 ) ˆ y = 9.6 m ˆ y B x ˆ x = 15.0 m *cos(40.0 ) ˆ x = 11.5 m ˆ x B y ˆ y = 15.0 m*sin(40.0 ) ˆ y = 9.6 m ˆ y C x ˆ x = 6.0 m*cos(60.0 ) ˆ x = 3.0 m ˆ x C y ˆ y = 6.0 m *sin(60.0 ) ˆ y = 5.2 m ˆ y x y B (15.0 m) A (12.0 m) 40.0 degrees 37.0 degrees C (6.0 m) 60.0 degrees
PH117-HMWK-1.41: A disoriented physics professor drives 3.25 km north, then 4.75 km west, and then 1.50 km south. Find the magnitude and direction of the resultant displacement, using the method of components. In a vector

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WebAssign-01-SOLN - PH117-HMWK-1.8 While driving in an...

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