1.

A car travels 5m in X direction and then 7m in Y direction. What is the final vector position of the car with respect to the origin?(a) 5î + 7ĵ(b) 7î + 5ĵ(c) 7î + 7ĵ(d) 5î + 5ĵThe question was asked in an internship interview.I would like to ask this question from Motion in a Plane in section Motion in a Plane of Physics – Class 11

Answer»

The CORRECT answer is (a) 5î + 7ĵ

To EXPLAIN I would say: UNIT vector along X is î and that along Y is ĵ. Hence, when the car travels 5m in X direction and 7m in y direction, the final position BECOMES 5î + 7ĵ.



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