Question

Groupwork: Kinematics and Forces Review If vector A = (4,5) and vector B-6,-7), calculate: 1.1 A+B 1.2 A-B 1.3 A-B 1.4 Convert both A and B into polar coordinates and draw them on a graph 2 A particle starts at the origin, Its initial velocity is 4m's in the x direction. Its acceleration is given by a-3sin(20). What are the values of a, v and As after 10s? Page 1 Feb. 28, 2018

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Answer 1

Page At B 21 + 12 () A'B = dot product어-veetors - 61一刊 o)--for-plar coordinate any vector 억 any Ve ACA 5) ME 64-ED2ニ485 ㄧㄧㄧㄧ- 51:34' 3