JEE Advanced 2021 Physics question
A particle of mass kg is initially at rest in the -plane at a point , where m and m. The particle is accelerated at time with a constant acceleration along the positive -direction. Its angular momentum and torque with respect to the origin, in SI units, are represented by and , respectively. , and are unit vectors along the positive , and -directions, respectively. If then which of the following statement(s) is(are) correct?
Answer: (A),(B),(C)
Solution
(A) Distance from to is 20 m: s – correct. The force is N and the line of motion is . (B) At : –
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