A body is moving with a constant acceleration of 11î + 7ĵ, starting from the origin. What will be the position of the body after 10s?
(a) 550î + 350ĵ
(b) 350î + 550ĵ
(c) 350î – 550ĵ
(d) 550î – 350ĵ
The question was asked at a job interview.
My question is from Motion in a Plane with Constant Acceleration in portion Motion in a Plane of Physics – Class 11
Select the correct answer from above options
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Correct answer is (a) 550î + 350ĵ
To explain: The body’s displacement is given by s = (1/2)at^2. The body starts from the origin hence, the total displacement is the final position of the body. Therefore, after putting in the values, we get, s = (1/2)(11î + 7ĵ)*10^2 = 550î + 350ĵ.