JEE Advanced 2020 Physics question
Sometimes it is convenient to construct a system of units so that all quantities can be expressed in terms of only one physical quantity. In one such system, dimensions of different quantities are given in terms of a quantity as follows: [position] ; [speed] ; [acceleration] ; [linear momentum] ; [force] . Then
Answer: (A),(B)
Solution
[time] = [position]/[speed] . [acceleration] = [speed]/[time] , so , i.e. : (A) is correct. [force] = [momentum]/[time] . Then $p + q - r =
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