1. an automobile travels 9 miles due south, then 20 miles in a direction 40 degrees south of east, determine the resultant displacement.
2.find the sum or resultant of the following displacements: A, 10 ft northwest, B, 20 ft 30 degrees north of east; C, 35 ft due south.
3.which of the vector r = xi+yj+zk makes with the positive directions of the coordinate axes.
4.An airplane pilot sets a course due north and his speed is 150km/hr. There is a wind 40km/hr from the east. What is the actual velocity of the airplane?
5. A river flows at a steady speed of 3m/s. A man wishes to cross in a motorboat which travels at 5km/hr so as to reach a point directly across the river. In what direction should he steer?
6. if r1 = 2i-j+k, r2 = i+3j-2k, r3 = -2i+j-3k and r4 = 3i+2j+5k, find the scalars a, b, c such that r4=ar1+br2+cr3
The answer to the question is available in the PDF file https://www.assignmentexpert.com/https://www.assignmentexpert.com/homework-answers/physics-answer-63070.pdf
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment