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Question 19: If E and b are two collinear vectors, then which of the following are incorrect: A. b = '15, for some scalar A B. {i=1}; C. the respective components of a and b are proportional D. both the vectors a and b have same direction, but different magnitudes \f\f\fQuestion 2: Classify the following measures as scalars and vectors. (i) 10 kg (ii) 2 metres northwest (iii) 40 (iv) 40 watt (v) 10'19 coulomb (vi) 20 mfs2 \f\f\f\f\f\f\f\f\f\f\fQuestion 7: Find the unit vector in the direction of the vectora =i +j+2k. \fQuestion 14: Show that the vector 5 +1 H' is equally inclined to the axes OX, OY, and 02. Question 4: Find the values of x and y so that the vectors 2" +3} and xi +547. are equal \fQuestion 13: Find the direction cosines of the vector joining the points A (1, 2, 3) and B (1, 2, 1) directed from A to B. Question 10: sfj+2 Find a vector in the direction of vector which has magnitude 8 units