QUESTION 4 Two vectors have the following magnitude, A = 10 m and B = 7.7 m. Their vector product is: AxB = -2.4 mi+ 12 m k. What is the angle (in degrees) between the vectors A and B? Hint: Use |AxB| = AB sin(0) Note: Bold face letters represents a vector.

Question 6 The scalar product of vectors A and B is 13 m² The magnitude of vector A is A = 3.39 m. The magnitude of vector B is B– 4.43 m The angle between vectors A and Bis degrees. Give your answer with one decimal place and no unit.

There are 6 vectors: a, b, c, d, e, f. Simply the following expression: [ a(b . c) X (e . f)d ] X [ a – d ].‘X’ represents cross product while ’.‘ represents dot product. Vectors a & d are perpendicular. a) 0 b) (b . c)(e . f) [ d + a ] c) (b . c)(e . f) [ d – a ] d) (b . c)(e . f) [ d X a ]

What is the dot product of the two vectors shown in the figure below? Provide your answer using 2 significant figures. Do not use scientific notation. y [cm] M IZ N x [cm]

In solid physics. Draw the plane ( 110 ) and the vector ( 110 ) in simple cube. The angle between the planes are 56

Subject: phys

The scalar product of two parallel vectors is zero O a. False of O b. True tion De nere to search, a %23

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50. Find the magnitude of the resultant of two 10-N forces applied at the same point when the angle between them is 130°. 7.8 N 18.1 N 19.8 N O 8.45 N 51. Two boys F1 and B2 act at a point. The magnitude of B1 is 8 kN and its direction is 60° above the horizontai axis in the first quadrant. The magnitude of B2 is 5 kN and its direction is 53° below the horizontal axis in the fourth quadrant. What is the magnitude of the resultant force? 7.0 kN 6.95 kN 8.6 kN 52. We can consider statics which the acceleration is zero. True False

Use the definition of scalar product, a · b = ab cos 0, and the fact that a = axbx + ayby + ażbz to calculate the angle between the two vectors given by á 8.0î + 8.0 + 8.0k and b = 7.0î + 8.0j + 6.0k. Number 168 Units ° (degrees)